Ben discovers that the Forever Knights are trading weapons with the DNAliens, while at the same time...

Ben, Gwen, and Kevin follow a lead that takes them to a secret base in the desert. There they hope t...

Gwen discovers that Grandpa Max's badge is able to signal other Plumbers. However, by using it, they...

Kevin shatters Ben and Gwen's trust when he steals the Rust Bucket to sell for alien technology on t...

Grandpa Max leaves Ben a series of instructions to contact a team of heroes. Things go the wrong dir...

Gwen's older brother, Ken, is suddenly missing. As they look, they encounter a surprise leading to a...

While Ben has a date with Julie, it is soon ruined when an alien named Ship makes trouble at the loc...

When Ben and Gwen learn that their grandmother Verdona is an alien being, Verdona insists that Gwen...

When Ben stands up to Cash and JT, they soon discover a robotic gauntlet from Kevin's vehicle. With...

A time experiment in the 1950s sends a bizarre monster to Ben's time. Now Ben, Gwen, and Kevin must...

The Forever Knights secure a weapon in hopes of aiding them slay a dragon they have held captive.

Freelance young Plumbers mistake Ben and his team as a threat.

An alien emperor plans to destroy the planet Earth for kidnapping his daughter. In order to save the...

A new villain comes into town, his name is Darkstar, he commits some crimes and gets the team's atte...

During a battle Ben and an alien commander are teleported to a distant world. They must put their di...

An alien impersonates Ben with hopes of using his Omnitrix to annihilate him.

Kevin asks Gwen to the school dance; Ben fears he's losing control of the Omnitrix.

Cooper is kidnapped by the DNAliens, who want him to build a mystery arch.

To find and destroy the alien dragon species, the Forever Knights capture Ship to control a starship...

When Ben's parents discover his ability to turn into aliens, they forbid him from using the Omnitrix...

After Gwen receives an S.O.S. from Helen, Ben must go into the Null Void to save her and Manny. Once...

Ben and the gang rescue a runaway prisoner of the DNAliens.

The gang helps the prince of the arachna-chimps regain power

Ben cares for a baby monster and helps locate its parents before the DNAliens find it.

Ben, Gwen and Kevin gather their allies to counter the threat of the incoming Highbreed fleet. Azmut...

Ben goes to the HighBreeds' world in an attempt to stop their attack on Earth.

Vilgax, after conquering 10 planets, comes to Earth to destroy Ben.

Ben, Gwen and Kevin race to collect the Omnitrix's missing forms and make it to the battle with Vilg...

Ben, Gwen and Kevin discover that Vulkanus is planning to drill the center of the Earth and drop a b...

A species of goat-like aliens comes to Earth for a popcorn festival. Ben, Gwen, and Kevin have a big...

An alien named Probity seeks help from Ben to stop the on-going war on her home planet.

Ship's owner decides he wants him back and hires some repo men to retrieve him. Ben and Kevin go to...

A bounty hunter tries to remove the Omnitrix from Ben.

A series of earthquakes awakens a HighBreed officer who has been hibernating deep under the earth’s...

Kevin is beginning to lose all hope that he will someday return to his human self. He then meets a g...

Vilgax promises Ghostfreak to spring him out of prison as long as he tells him the secrets of the Om...

Kevin makes a temporary truce with Darkstar to retrieve an artifact that will return them into their...

Ben, Kevin and Gwen come across an alien box that can forms into a robotic version of whatever it se...

Zaw-Veenull asks Ben to deliver Prince Tiffin to Jarret in order to keep peace between the two speci...

The Omnitrix transports Ben, Gwen, and Kevin to a planet called Primus, which turns out to have been...

Despite being warned by Paradox, Gwen travels back in time to prevent the accident that turned Kevin...

While sick, Ben is visited by old friend Tetrax, who demands that Ben hand over Chromastone.

The Plumber's Helpers are called upon by Grandpa Max to rescue him from an abandoned space station w...

Kevin returns home to find his house ransacked, so he enlists Ben and Gwen's help to find out who di...

Albedo has stolen the Ultimatrix from Azmuth and has used it to kidnap Gwen and Kevin. Ben goes to f...

Powerless, Ben goes aboard Vilgax's ship and faces off with Vilgax to stop his invasion of Earth in...