
Stargate SG-1
The story of Stargate SG-1 begins about a year after the events of the feature film, when the United States government learns that an ancient alien device called the Stargate can access a network of such devices on a multitude of planets. SG-1 is an...
Stargate SG-1
The story of Stargate SG-1 begins about a year after the events of the feature film, when the United States government learns that an ancient alien device called the Stargate can access a network of such devices on a multitude of planets. SG-1 is an elite Air Force special operations team, one of more than two dozen teams from Earth who explore the galaxy and defend against alien threats such as the Goa'uld, Replicators, and the Ori.
Stargate SG-1
The story of Stargate SG-1 begins about a year after the events of the feature film, when the United States government learns that an ancient alien device called the Stargate can access a network of such devices on a multitude of planets. SG-1 is an...

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Episodes
Episode 1: From Stargate to Atlantis: A Sci-Fi Lowdown
The Sci-Fi Channel debuted the behind-the-scenes special "From Stargate to Atlantis: A Sci-Fi Lowdow...
Episode 2: Behind The Stargate - Secrets Revealed
The SCI FI Channel previewed the second half of Stargate SG-1 Season Eight and Stargate Atlantis Sea...
Episode 3: Stargate SG-1: True Science
Amanda Tapping takes us on a fascinating look at how many aspects surrounding SG-1 have a basis in r...
Episode 4: Sci Fi Inside: Stargate SG-1 200
The 200th episode of the venerated sci-fi series is discussed during this special.
Episode 6: Behind The Mythology of Stargate SG-1
This special deals with how the SG-1 series intertwined many of Earth's mythologies into its plots a...

Episode 7: Children of the Gods - Final Cut
Taking after the author's vision of the pilot, visual effects have been enhanced, the soundtrack has...
Episode 8: Stargate A.I.
See stars Michael Shanks, Amanda Tapping, Jewel Staite, and David Hewlett back in character for the...
A military-science expedition team discovering how to use the ancient device, named the Stargate, to explore the galaxy. However, they encountered a powerful enemy in the film named the Goa'uld, who are bent on destroying Earth and all who oppose them.

Episode 1: Children of the Gods (1)
When powerful aliens come through Earth's Stargate, Colonel Jack O'Neill returns to Abydos to retrie...

Episode 2: Children of the Gods (2)
Colonel O'Neill, leading the new SG-1, track Apophis back to the planet Chulak to rescue Sha're and...

Episode 3: The Enemy Within
Major Kawalsky is possessed by a Goa'uld, and the SGC must find a way to remove it without killing h...

Episode 4: Emancipation
An alien civilization is forced to reconsider their views on women when Carter rebels against their...

Episode 5: The Broca Divide
Members of SG-1 become infected with an alien virus that turns them into primitive beings. Dr. Frais...

Episode 6: The First Commandment
SG-1 must stop a renegade Stargate commander, who has gone mad and set himself up as a god on an ali...

Episode 7: Cold Lazarus
During an off-world assignment, Jack is struck down by energy from a blue crystal... which creates a...

Episode 8: The Nox
Pressed by the government to acquire new technologies, SG-1 is led to a world inhabited by a seeming...

Episode 9: Brief Candle
SG-1 discovers a race of attractive people who age extremely rapidly. The situation becomes personal...

Episode 10: Thor's Hammer
Teal'c and O'Neill are transported to an underground cage designed by the Asgard to protect an alien...

Episode 11: The Torment of Tantalus
SG-1 tracks down Catherine Langford's fiancee, who took the first Stargate trip in 1945, and discove...

Episode 12: Bloodlines
Teal'c returns to Chulak to stop his people from implanting his son with a larval Goa'uld.

Episode 13: Fire and Water
Daniel is taken captive by an alien with a hidden agenda, while SG-1 is made to believe he is dead.

Episode 14: Hathor
The banished Goa'uld Hathor is found in an ancient sarcophagus Earth, and takes over the S.G.C. with...

Episode 15: Singularity
A mysterious affliction wipes out the entire population of a planet, plus an SG team -- except for o...

Episode 16: Cor-Ai
Teal'c must stand trial for a crime committed while he served as first prime of Apophis when a villa...

Episode 17: Enigma
The SG-1 team rescues a group of advanced humans from a planet near destruction, and must find a new...

Episode 18: Solitudes
Colonel O'Neill and Captain Carter are separated from Jackson and Teal'c during a Stargate journey,...

Episode 19: Tin Man
The members of SG-1 arrive on P3X-989 and are knocked unconscious. They wake up and return to Earth...

Episode 20: There But For the Grace of God
An alien artifact transports Daniel to an alternate reality, where he is not a part of the Stargate...

Episode 21: Politics (1)
Senator Kinsey arrives at the SGC to investigate the program and determine whether the great drain o...

Episode 22: Within the Serpent's Grasp (2)
SG-1 escapes through the Stargate before it is shut down, and learns that Daniel's alternate reality...
O'Neill and the team return to Cimmeria, the planet where they destroyed Thor's Hammer to help Teal'c escape. They find that the Goa'uld have invaded and many of the people are dead. Can they help to find Thor's weapons to fight off the invasion before they are all captured or killed?

Episode 1: The Serpent's Lair (3)
With SG-1 trapped on Klorel's ship, it seems that Earth is doomed as the Pyramid Ships prepare to de...

Episode 2: In the Line of Duty
Carter is possessed by a Goa'uld who claims to be an enemy of the System Lords.

Episode 3: Prisoners
SG-1 is put on trial and exiled to a prison world, where a woman maintains a strange control over he...

Episode 4: The Gamekeeper
SG-1 is imprisoned in a virtual reality realm and forced to relive the worst moments of their lives...

Episode 5: Need
Jackson becomes addicted to the effects of a Goa'uld sarcophagus, and falls for the planet's manipul...

Episode 6: Thor's Chariot
SG-1 returns to Cimmeria, and finds that without protection from the Asgard the planet has been inva...

Episode 7: Message in a Bottle
SG-1 discovers an ancient artifact that takes O'Neill and the S.G.C. hostage.

Episode 8: Family
The SG-1 team attempt to rescue Teal'c's son, who has been kidnapped and brainwashed by Apophis. Tea...

Episode 9: Secrets
Jackson discovers that his wife has returned to Abydos, and is nine months pregnant with the son of...

Episode 10: Bane
Teal'c is infected with deadly venom from a giant insect, and begins a terrible transformation. When...

Episode 11: The Tok'ra (1)
SG-1 locates the Tok'ra, a Goa'uld resistance movement who oppose the System Lords, and attempt to f...

Episode 12: The Tok'ra (2)
While SG-1 tries to form an alliance with the Tok'ra, a spy betrays the rebels to the Goa'uld. Jacob...

Episode 13: Spirits
SG-1 finds a planet inhabited by Native American Indians, protected by spirits who are actually adva...

Episode 14: Touchstone
SG-1 is accused of stealing an important weather-controlling device, sending a primative planet into...

Episode 15: The Fifth Race
O'Neill becomes the unwilling receptacle for a library of alien knowledge.

Episode 16: A Matter of Time
After gating to a world on the edge of a black hole, the S.G.C. cannot disengage the Stargate. All o...

Episode 17: Holiday
SG-1 discovers an elderly man known for developing technology to fight the Goa'uld. Daniel is tricke...

Episode 18: Serpent's Song
Apophis, SG-1's greatest enemy, seeks sanctuary from Sokar and ends up near death in the S.G.C. infi...

Episode 19: One False Step
A group of primitive aliens begin to fall deathly ill after SG-1 arrives.

Episode 20: Show and Tell
A young boy arrives through the Stargate, and warns of plot by invisible aliens to kill all of the h...

Episode 21: 1969
A cosmic accident causes SG-1 to be sent back 30 years into Earth's past, where they must locate the...

Episode 22: Out of Mind (1)
O'Neill, Carter and Jackson awaken from stasis in what appears to be the S.G.C. -- almost 80 years i...
SG-1 in their fight against the Goa'uld Empire's System Lords, the main being Sokar until "The Devil You Know" and then Apophis, after he regained power during that episode.

Episode 1: Into the Fire (2)
O'Neill, Carter and Jackson must escape Hathor's clutches, while Teal'c tries to raise a Jaffa army...

Episode 2: Seth
SG-1 must find a renegade Goa'uld who has been hiding on Earth for thousands of years.

Episode 3: Fair Game
The Asgard aid Earth in negotiating a nonagression treaty with the Goa'uld System Lords.

Episode 4: Legacy
When Daniel goes insane, SG-1 must deal with the legacy of Machello's anti-Goa'uld technology.

Episode 5: Learning Curve
SG-1 discovers a planet where children are used to acquire knowledge for the entire population, then...

Episode 6: Point of View
SG-1 must free an alternate reality Earth from a Goa'uld invasion after duplicates of Samantha Carte...

Episode 7: Deadman Switch
SG-1 is taken captive by an alien bounty hunter with uncertain loyalties.

Episode 8: Demons
SG-1 finds a medieval Christian society terrorized by Sokar and the Unas, and is accused of being po...

Episode 9: Rules of Engagement
SG-1 discovers a military camp where young men are trained to impersonate SGC personnel to infiltrat...

Episode 10: Forever in a Day
Jackson deals with the apparent death of his wife, Sha're, at the hands of Teal'c.

Episode 11: Past and Present
SG-1 encounters an entire planet suffering from amnesia. The planet's leader returns to Earth with...

Episode 12: Jolinar's Memories (1)
When Major Carter's father Jacob is kidnapped by Sokar, the SG-1 team must infiltrate a prison moon...

Episode 13: The Devil You Know (2)
SG-1 must escape a hellish prison moon, and one of their worst enemies.

Episode 14: Foothold
SG-1 returns from a mission and discovers that metamorphic aliens have taken over the complex.

Episode 15: Pretense
The Tollan put Skaara and Klorel on trial to determine who will control the host body.

Episode 16: Urgo
SG-1 receives alien brain implants that manifest themselves as a bizarre man, who tells them that th...

Episode 17: A Hundred Days
After a meteor strike buries the Stargate, O'Neill finds himself stranded on a planet with no hope o...

Episode 18: Shades of Grey
O'Neill steals technology from the Tollan, and is forced to leave the Stargate program. Maybourne of...

Episode 19: New Ground
The members of SG-1 are imprisoned on a planet and become pawns in a war of ideology.

Episode 20: Maternal Instinct
SG-1 discovers the mystical planet Kheb, and must find the Harcesis child of Apophis and Sha're befo...

Episode 21: Crystal Skull
An alien artifact causes Daniel to disappear, and the team looks for help from his institutionalized...

Episode 22: Nemesis (1)
SG-1 faces creatures of mass destruction that even the Asgard can't control, and must destroy Thor's...
O'Neill and Teal'c risk their lives to keep the Replicator bugs from gaining a foothold on Earth, while Carter helps the Asgard fend off a Replicator invasion. A warring alien race offers to exchange their advanced technology for Earth's help in defeating their enemy.

Episode 1: Small Victories (2)
O'Neill and Teal'c risk their lives to keep the Replicator bugs from gaining a foothold on Earth, wh...

Episode 2: The Other Side
A warring alien race offers to exchange their advanced technology for Earth's help in defeating thei...

Episode 3: Upgrades
A Tok'ra archaeologist arrives at the SGC with newly discovered technology, giving the SG-1 team sup...

Episode 4: Crossroads
Teal'c is reunited with his lost love -- a woman who claims to have found a way to communicate with...

Episode 5: Divide and Conquer
When a member of the SGC tries to kill a Tok'ra, it is revealed that O'Neill and Carter may be victi...

Episode 6: Window of Opportunity
O'Neill and Teal'c are caught in a time loop in the SGC, and must relive the same 10 hours over and...

Episode 7: Watergate
The Russians recover a Stargate from the bottom of the ocean, and turn to the SGC for help when thei...

Episode 8: The First Ones
Dr. Jackson is taken captive by an Unas while on an archaeological dig. The SGC mounts a rescue oper...

Episode 9: Scorched Earth
SG-1 is caught in a conflict between two civilizations trying to colonize the same planet.

Episode 10: Beneath the Surface
The members of SG-1 are used as forced labor in an underground alien facility after their memories a...

Episode 11: Point of No Return
SG-1 investigates a conspiracy theorist who has detailed knowledge of the Stargate program.

Episode 12: Tangent
A test gone wrong leaves Jack and Teal'c marooned in space aboard a damaged prototype attack ship

Episode 13: The Curse
When his former mentor dies, Dr. Jackson returns to his roots -- and discovers an ancient Egyptian a...

Episode 14: The Serpent's Venom
SG-1 must stop Apophis and Heru-ur from forming an alliance of their powerful forces, while Teal'c i...

Episode 15: Chain Reaction
SG-1 must adjust to a new commanding officer when General Hammond steps down -- but O'Neill discover...

Episode 16: 2010
Ten years into the future, the former members of SG-1 must send a message into the past to prevent t...

Episode 17: Absolute Power
Jackson's teammates notice a disturbing change in him when he is reunited with the Harcesis child an...

Episode 18: The Light
SG-1 finds a deserted Goa'uld palace, where a beautiful device causes suicidal tendencies.

Episode 19: Prodigy
Carter must help keep a promising young cadet from throwing away a future at the SGC. O'Neill and Te...

Episode 20: Entity
The SGC is invaded by an alien life force that takes up residence in the base computer system -- and...

Episode 21: Double Jeopardy
SG-1 must rescue an alien world from the Goa'uld -- with help from an unexpected source. Teal'c seek...

Episode 22: Exodus (1)
SG-1 helps to evacuate the Tok'ra to a new base -- but matters are complicated when a spy reveals th...
SG-1 trains a team of raw cadets, and Colonel O'Neill is forced to take them into a real-life battle situation when he learns of a possible alien incursion at the S.G.C. After an accident with the Stargate traps Teal'c in transit, SG-1 must turn to Russia – and to their enemies – for help before time runs out.

Episode 1: Enemies (2)
SG-1 finds themselves stranded in a crippled ship in a distant galaxy -- with Apophis threatening to...

Episode 2: Threshold (3)
His mind altered by Apophis, Teal'c must undergo a ritual that takes him to the edge of death itself...

Episode 3: Ascension
An alien being is smitten with Carter and follows her back to Earth. It assumes a human form and pur...

Episode 4: The Fifth Man
O'Neill and Lieutenant Tyler are ambushed by Goa'uld forces and trapped behind enemy lines -- while...

Episode 5: Red Sky
SG-1 discovers that their recent trip through the Stargate may have inadvertently doomed an entire c...

Episode 6: Rite of Passage
Cassandra mysteriously falls ill, sending SG-1 back to her home planet -- where they uncover a dark...

Episode 7: Beast of Burden
SG-1 discovers a civilization that uses Unas as slave labor, and attempt to liberate Daniel's friend...

Episode 8: The Tomb
SG-1 teams with a Russian unit when one of their Stargate teams goes missing in a mysterious alien z...

Episode 9: Between Two Fires
The Tollan offer Earth advanced weapons technology, prompting a secret investigation on Tollana -- o...

Episode 10: 2001
SG-1 encounters a potential new, technologically advanced ally in the war against the Goa'uld -- tho...

Episode 11: Desperate Measures
When Carter goes missing, O'Neill teams up with Col. Maybourne again to free her.

Episode 12: Wormhole X-Treme!
An alien ship approaches Earth, sending SG-1 to an old friend for some answers -- where they discove...

Episode 13: Proving Ground
SG-1 trains a team of raw cadets, and Colonel O'Neill is forced to take them into a real-life battle...

Episode 14: 48 Hours
Disaster strikes the Stargate, trapping Teal'c in transit. SG-1 must turn to Russia -- and to their...

Episode 15: Summit (1)
The Tok'ra war with the Goa'uld escalates, and the rebel faction sends Daniel Jackson to a secret me...

Episode 16: Last Stand (2)
Dr. Jackson's undercover mission to a Goa'uld summit is complicated by the arrival of a surprise gue...

Episode 17: Fail Safe
Earth finds itself threatened by something even larger than the Goa'uld when the team learns that an...

Episode 18: The Warrior
A charismatic Jaffa leader seeks to forge an alliance between Earth and his rebel followers, winning...

Episode 19: Menace
SG-1 encounters a young woman with the ability to control Replicators, and who may hold the key to t...

Episode 20: The Sentinel
SG-1 must turn to a pair of convicted criminals to save a world from annihilation by the Goa'uld.

Episode 21: Meridian
Daniel Jackson is exposed to a lethal dose of radiation while visiting an alien civilization that is...

Episode 22: Revelations
SG-1 must come to the rescue of their once-powerful allies when the Goa'uld attack a secret Asgard l...
O'Neill and Carter launch a risky plan with untested technology when Earth comes under attack by the Goa'uld. Carter must find a way to save Earth from total destruction at the hands of the Goa'uld, who have turned the Stargate into a doomsday bomb. Rya'c joins his father on a mission to destroy the Goa'uld weapon.

Episode 1: Redemption (1)
Tragedy reunites Teal'c with his son, who blames him for the death of his mother. O'Neill and Carter...

Episode 2: Redemption (2)
Carter must find a way to save Earth from total destruction at the hands of the Goa'uld, who have tu...

Episode 3: Descent
SG-1 boards an abandoned Goa'uld mothership that has mysteriously arrived in Earth's orbit, and must...

Episode 4: Frozen
SG-1 investigates the discovery of a woman frozen in the ice in Antarctica, who may be a link to the...

Episode 5: Nightwalkers
Carter, Teal'c and Jonas investigate the death of a scientist with connections to the Goa'uld, and f...

Episode 6: Abyss
O'Neill is captured and tortured by the Goa'uld, and must rely on an old friend to survive.

Episode 7: Shadow Play
Jonas' people ask Earth for military aid in an impending war with their rival nations, but his forme...

Episode 8: The Other Guys
When SG-1 is captured by the Goa'uld, a pair of scientists mount a rescue operation ... whether they...

Episode 9: Allegiance
Tensions rise between the Tok'ra and rebel Jaffa at the S.G.C.'s offworld base when they are attacke...

Episode 10: Cure
An alien world offers Earth a medicine with the power to cure any illness -- but the hidden price ma...

Episode 11: Prometheus (1)
A news reporter threatens to expose a top-secret military project, but when Carter and Jonas give he...

Episode 12: Unnatural Selection (2)
The team is called into battle unexpectedly when the Asgard homeworld is overrun by Replicators -- w...

Episode 13: Sight Unseen
The team returns to Earth with a piece of technology that allows them to see alien creatures everywh...

Episode 14: Smoke & Mirrors
Colonel O'Neill is charged with the murder of Senator Kinsey, and the rest of the team must uncover...

Episode 15: Paradise Lost
Colonel O'Neill is trapped on an alien planet with Maybourne, and must fight to stay alive as his co...

Episode 16: Metamorphosis
SG-1 attempts to save a planet's inhabitants from Nirrti's genetic experimentation, but find themsel...

Episode 17: Disclosure
General Hammond and the Pentagon reveal the existence of the Stargate to other world governments, an...

Episode 18: Forsaken
When the team finds a crashed ship on another planet, their efforts to help the crew effect repairs...

Episode 19: The Changeling
A near-death trial causes Teal'c to imagine his life as very different from the one he knows, where...

Episode 20: Memento
Prometheus is forced to land on an alien world, where the local Stargate is the team's only chance o...

Episode 21: Prophecy
The team finds an impoverished world enslaved by a Goa'uld underlord, but their plans to free it may...

Episode 22: Full Circle
SG-1 is called to defend the people of Abydos from the Goa'uld once again when they learn that Anubi...
SG-1 discovers Daniel Jackson alive and living on an alien world, with no memory of who he is. The team hatches a plan to lure Anubis into a trap and destroy his new super-weapon. The team returns to Jonas's homeworld when they learn that the Goa'uld are after its naquadria.

Episode 1: Fallen (1)
While searching for the Lost City of the Ancients on a distant planet, SG-1 is stunned to find Danie...

Episode 2: Homecoming (2)
The team returns to Jonas' homeworld when they learn that the Goa'uld are after its naquadria. When...

Episode 3: Fragile Balance
A teenage boy shows up at the S.G.C. claiming to be Jack O'Neill, sending the team on a mission to u...

Episode 4: Orpheus
After an injury, Teal'c must put aside his self-doubt when SG-1 launches a mission to rescue his son...

Episode 5: Revisions
The team gates to a climate-controlled environment amidst a toxic wasteland, whose people are all li...

Episode 6: Lifeboat
When SG-1 finds a crashed alien space ship, Daniel's mind is taken over by its disembodied passenger...

Episode 7: Enemy Mine
When Earth's attempts to exploit a newly-discovered naquadah mine are thwarted by a tribe of indigen...

Episode 8: Space Race
Major Carter joins an alien pilot for a space race, where the winner is awarded a lucrative contract...

Episode 9: Avenger 2.0
An S.G.C. scientist creates a computer virus to be used to disable enemy Stargates -- but succeeds i...

Episode 10: Birthright
The team finds a fugitive colony of Jaffa women, who must prey on other Jaffa to acquire symbiotes.

Episode 11: Evolution (1)
The team investigates an unstoppable new enemy soldier engineered by Anubis. Dr. Jackson leads a tea...

Episode 12: Evolution (2)
O'Neill seeks help from a former comrade to rescue Daniel and Dr. Lee, who have been kidnapped in Ce...

Episode 13: Grace
Carter is injured when the Prometheus is attacked by an unknown ship, and awakens to find herself st...

Episode 14: Fallout
When the Kelownans discover that a massive underground vein of naquadah is being converted into naqu...

Episode 15: Chimera
Daniel is plagued by dreams of his former girlfriend, who has been taken as a Goa'uld host. Samantha...

Episode 16: Death Knell
Earth's secret offworld base is attacked by Anubis' forces, and Major Carter finds herself being hun...

Episode 17: Heroes (1)
A film crew arrives to document the work of the S.G.C. for eventual disclosure to the public, but fi...

Episode 18: Heroes (2)
SG-1 is called into action while a film crew is documenting the Stargate program, but the S.G.C. com...

Episode 19: Resurrection
SG-1 investigates a secret N.I.D. laboratory, where a ruthless scientist has used cloning technology...

Episode 20: Inauguration
The newly-elected president is debriefed about the Stargate program, and Vice President Kinsey makes...

Episode 21: Lost City (1)
O'Neill goes to great lengths to keep the Ancients' knowledge from falling into Goa'uld hands when t...

Episode 22: Lost City (2)
Anubis begins a systematic assault on Earth, and the planet's only hope of salvation depends on whet...
With Jack still in stasis in the Ancient outpost buried in Antarctica, SG-1 tries to contact the Asgard. Meanwhile their new leader, Dr. Elizabeth Weir, tries to decide what to do about a request for peace talks from the Goa'uld System Lords.

Episode 1: New Order (1)
Carter and Teal'c go in search of the Asgard to try and save Colonel O'Neill, but discover that the...

Episode 2: New Order (2)
While the Goa'uld threaten to attack Earth, SG-1 and the Asgard make a last, desperate stand against...

Episode 3: Lockdown
The S.G.C. is put under quarantine after a mysterious infection leaves a Russian officer in the infi...

Episode 4: Zero Hour
General O'Neill tries to settle into his new job, but faces never-ending crises - including the capt...

Episode 5: Icon
Daniel is stranded on another planet after the team's arrival on an alien world sparks a violent civ...

Episode 6: Avatar
Teal'c is trapped in a virtual reality simulation, in which he must defend the base from a Goa'uld s...

Episode 7: Affinity
Teal'c becomes the chief suspect in a murder investigation after he moves into an apartment off-base...

Episode 8: Covenant
A businessman threatens to expose the secrets of alien life to the world, forcing Stargate Command t...

Episode 9: Sacrifices
The impending wedding of his son is the least of Teal'c's worries when the Hak'tyl plan an uprising...

Episode 10: Endgame
The Stargate is stolen, leading SG-1 to discover that the Trust has taken control of an advanced shi...

Episode 11: Gemini
A duplicate of Colonel Carter seeks help from Stargate Command in defeating the Replicator Fifth, wh...

Episode 12: Prometheus Unbound
After the Prometheus responds to a distress call from a Goa'uld ship, Daniel Jackson finds himself a...

Episode 13: It's Good to Be King
SG-1 comes to the aid of a world about to be invaded by the Goa'uld, only to discover that the local...

Episode 14: Full Alert
Relations between the U.S. and Russia are strained when Russian military leaders claim that the U.S....

Episode 15: Citizen Joe
Jack is confronted in his home by an irate barber...who claims to know everything about the Stargate...

Episode 16: Reckoning (1)
The Replicators begin a systematic attack of the Goa'uld, forcing Baal to come to Earth for help. Th...

Episode 17: Reckoning (2)
The fate of the galaxy hangs in the balance as Sam and Jacob search for the only weapon capable of s...

Episode 18: Threads
While Daniel finds himself in a mysterious diner suspended between death and ascension, Jacob's fate...

Episode 19: Moebius (1)
SG-1 travels back in time in a daring plan to steal a piece of Ancient technology from Ra, the power...

Episode 20: Moebius (2)
With the timeline changed by SG-1's actions in the distant past, an alternate version of SG-1 must u...
As one team member transitions into a new role, another is met with hesitation in season nine. Having learned of the Ori's plan to control the mortal plane, the team must find Merlin's secret weapon that may destroy the Ori and ensure the safety of Earth.

Episode 1: Avalon (1)
An Air Force pilot attempts to reassemble SG-1 after they have gone their separate ways. An old "fri...

Episode 2: Avalon (2)
An Ancient communications device renders Daniel and Vala unconscious, sending their minds to another...

Episode 3: Origin (3)
Daniel comes face to face with the Ori, a fiery race of beings who demand the worship of mortals. El...

Episode 4: The Ties That Bind
Jackson and Mitchell must join Vala on an interplanetary scavenger hunt when they learn that they ar...

Episode 5: The Powers That Be
SG-1 visits a world whose people once worshipped Vala as a god -- and demand that she stand trial wh...

Episode 6: Beachhead
Samantha Carter returns to Stargate Command when the Ori seize control of a planet, using an expandi...

Episode 7: Ex Deus Machina
SG-1 investigates when evidence suggests that there are still Goa'uld hiding on Earth -- including a...

Episode 8: Babylon
Colonel Mitchell is injured in a skirmish with a warrior from a mythic tribe of rebel Jaffa, and is...

Episode 9: Prototype
SG-1 finds a genetically advanced Goa'uld-human hybrid created by Anubis, and returns him to Earth f...

Episode 10: The Fourth Horseman (1)
Earth is infected with a deadly Ori plague, prompting an ally from SG-1's past to come to their aid....

Episode 11: The Fourth Horseman (2)
As the Ori plague spreads rapidly, SG-1 hopes that the Prior who caused the disease may hold the key...

Episode 12: Collateral Damage
When SG-1 travels to an Asgard Protected Planet, Colonel Mitchell is accused of a murder he did not...

Episode 13: Ripple Effect
Multiple SG-1s show up at Stargate Command, leading the "real" team to conclude that they have each...

Episode 14: Stronghold
Baal kidnaps Teal'c as part of a plot to brainwash those Jaffa advocating a move toward democracy. C...

Episode 15: Ethon
Daniel is imprisoned on a world under the influence of the Ori, and the Prometheus is caught in a fi...

Episode 16: Off the Grid
SG-1 is captured after a deal with the Lucian Alliance goes bad ... and the planet's Stargate goes m...

Episode 17: The Scourge
A tour of an off-world research base for a group of foreign diplomats turns dangerous when an insidi...

Episode 18: Arthur's Mantle
Mitchell and Carter are shifted to another dimension, making them invisible to everyone at the S.G.C...

Episode 19: Crusade
Vala Mal Doran makes contact with Stargate Command from the Ori home galaxy, and tells the story of...

Episode 20: Camelot
SG-1 discovers the village of Camelot on an alien world, and must face Merlin's security system when...
As the team embarks upon its tenth year, Vala, a former Goa'uld host turned freedom-fighter, joins SG-1 in their battle to defend the galaxy from the holy war of the Ori. Having discovered the existence of a weapon capable of defeating the Ori, the team is now in a race against time to find it before more systems fall to the influence of the Priors and the threat of the newly arrived Origin fleet. The season is continued with direct-to-DVD film Stargate: The Ark of Truth.

Episode 1: Flesh and Blood
As the Ori invade the Jaffa planet Chulak, Vala and Daniel must deal with their leader: Vala's young...

Episode 2: Morpheus
SG-1 investigates a problem off-world and soon finds that they have become victims themselves: they...

Episode 3: The Pegasus Project
Daniel and Vala travel to Atlantis in search of Merlin's anti-Ori weapon, while Sam, and Mitchell jo...

Episode 4: Insiders
When Ba'al comes to Earth seeking help, Stargate Command must capture his clones and determine which...

Episode 5: Uninvited
Teal'c discovers a world where people are being savagely attacked by an elusive creature, leading SG...

Episode 6: 200
Martin Lloyd seeks out SG-1 for assistance when his failed TV show based on the real Stargate progra...

Episode 7: Counterstrike
The Jaffa take the fight to the Ori, using a genocidal weapon on their new worshipers and landing SG...

Episode 8: Memento Mori
Stricken with amnesia and on the run, Vala takes a job as a waitress as she tries to piece together...

Episode 9: Company of Thieves
Cameron Mitchell must go undercover inside the deadly Lucian Alliance to prevent his teammates from...

Episode 10: The Quest (1)
SG-1 races against Baal in the hunt to find the Sangraal, Merlin's anti-Ori weapon, and comes up aga...

Episode 11: The Quest (2)
When the team finds Merlin himself, they must help him complete the Sangraal weapon before Adria and...

Episode 12: Line in the Sand
SG-1 tries to defend a planet from the Ori by hiding its people in another dimension. Vala attempts...

Episode 13: The Road Not Taken
An experiment gone wrong pulls Samantha Carter into a parallel reality, where she must save Earth fr...

Episode 14: The Shroud
When SG-1 discovers that Daniel Jackson has been turned into a Prior of the Ori, they must determine...

Episode 15: Bounty
When the Lucian Alliance puts a bounty on SG-1's heads, Cameron Mitchell finds himself a target whil...

Episode 16: Bad Guys
SG-1 realizes they have stepped through the gate into another planet's museum -- but are mistaken fo...

Episode 17: Talion
When a terrorist attack decimates a Jaffa summit Teal'c strikes out on a quest for revenge, believin...

Episode 18: Family Ties
Earth provides sanctuary for Vala's estranged, con artist father after he provides intel about a Jaf...

Episode 19: Dominion
SG-1 hatches an elaborate plan to try and capture Adria, using Vala as bait.

Episode 20: Unending
Trapped on board the Odyssey, the members of SG-1 must live out the rest of their lives together whe...
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