Dianne Bates and her sons Jason and Bret come to the underwater base ORCA for six months. They meet...

Vanessa Lane comes to ORCA and ends up in the same class as Jason. Brett, Zoe and Froggy play a tric...

Jason taks driving licene foor the boat and gets out to sunk a net. The whale charle{} gets stuck in...

Vanessa and Jason go out on a mission with the boat but Neri warns Jason that an earthquake is comin...

Brett's birthday party proves to be a big hit with his friends but Brett is disappointed when he doe...

Jason's frequent use of the boats results in Commander Lucas banning him from using them for a perio...

Neri brings Jason's attention to a toxic dump in the ocean that is making Charlie sick. When Jason i...

Jason agrees to show Neri his and Jason's home on ORCA. After steeling one of Vanessa's uniforms and...

As the kids are preparing for their shore leave to Port Jackson, Neri makes a surprise visit that fo...

New monitoring equipment allows Dianne and Winston to hear Neri's communications with Charlie but wh...

Dianne asks Neri to help with her research on whales, Dianne is especially curious as to how Neri is...

The spy takes the stolen whale recordings back to Dr. Hellegren at UBRI—Hellegren wants to be the...

Jason and Brett round up their friends to help rescue Charlie, but Jason must also tell them the tru...

Jason and Brett eagerly await the return of Neri and Charlie–as does UBRI's Dr. Hellegren who want...

Neri makes her first visit to ORCA since her return, and tells her friends that she wants to discove...

After locating an underwater entrance to the spaceship, Neri and Jason enter the craft where they fi...

The search for Neri's sister Mera is underway. Mick asks Froggy to use his computer to change his gr...

The kids locate Mera. Her adopted name is Jane Seaforth, and after being bounced from foster family...

Jason, Brett, Froggy, and Zoe return to the institute to get Mera but Dr. Hellegren arrives there as...

Mera is having a difficult time adjusting to living on the island and Neri leaves her alone while sh...

Suspecting a connection between Neri and Jane Seaforth, Dr. Hellegren sends UBRI agents Forsyth and...

Neri returns to help Dianne with her oceanographic survey leaving Mera alone on the island to face a...

Prior to leaving on the final survey mission, Dianne learns Commander Byrne has assigned Froggy, Zoe...

Jason takes Neri and Mera swimming off the ORCA platform. Mick finds out and heads out on a jetski,...

Neri leaves ORCA intending to save Mera and Charlie by giving herself up to UBRI. Brett chases after...

Neri and Mera make the decision to return to the Ocean Planet and convince Diane that her research m...

Winston calls Diane and her sons back from their vacation informing them that UBRI has won the contr...

Brett talks Jason and Neri into looking for a way into the spacecreaft they found buried on Neri's i...

Jason and Brett steal a pump from UBRI supplies on ORCA so they can pump out the spaceship. Cass and...

Jason and Brett are about to force the chamber open when Neri finds the controls that open the chamb...

Concerned about Kal's development, Neri asks Jason to talk to him. After telling him to stay on the...

Hoping to keep Kal from making any return trips to ORCA, Jason suggests to Neri that she show him ar...

Neri goes to ORCA to see how Jason and Brett are going with their search for the Synchronium. Dianne...

Neri awakes on the island to find Kal missing, he's gone to ORCA. Jason and Brett introduce Kal to D...

Brett locates another piece of Synchronium but interrupts Jason's training exercise to tell him the...

Neri moves the Synchronium piece to her secret underwater cave to keep it safe. Benny's father chast...

A trip to ORCA prompts a discussion between Neri and Kal about feelings. Cass is beginning to rememb...

Neri continues to teach Kal about feelings. Cass is still having her dreams about her time on Neri's...

Neri receives a message from Mera in a dream warning her that time is running out. Neri goes to ORCA...

HELEN is not being cooperative in the kids' search for more pieces of the Synchronium. Meanwhile, UB...

Winston is excited about the arrival of Camilla Sabato (Robyn Gibes) to ORCA, she is a science write...

Dianne demands that a tribunal hearing be convened to stop UBRI's development, but Hellegren argues...

Brett tries unsuccessfully to get Kal to come out of the spaceship. Dianne is granted a tribunal hea...

Kellar shows Dr. Hellegren the footage she took of Kal on the sandbar, he quickly recognizes who Kal...

Neri continues to look for Ka but Jason suggests Kal is just trying to teach them a lesson by stayin...

Kal is in the lap of luxury at UBRI, his room filled with all sorts of toys and games. Kellar, makin...

Neri has Kal promise not to leave the island again. Lena uses HELEN to locate another piece of the S...

The cadets' exam results are in and after looking at her's, Sallyanne tells Jason he would be better...

A large quake hits keeping Lena from accessing HELEN to look for more of the Synchronium. Cass and B...

Budds The growing frequency of the seismic tremors causes Commander Wellington to call for voluntary...

The effects of the new ""Winston Seth"" fault line are being felt all around the Pacific Rim as evac...

A large quake prompts the commander to call for an evacuation of all ORCA personnel under the age of...

Brett and Jason are out testing a new diving suit when Jason encounters a strange bright light while...

Dianne is at ORCA Pacific headquarters for her interview, she is surprised to discover her exhusband...

Neri, Jason, and Brett wander into an archeological dig and meet Professor Malakat and Shersheba. Fi...

From the DNA sample obtained from a strand of Neri's hair, Praxis identifies Neri as an alien and ma...

Leaving the cave to find help, Jason is found by Jackhammer who drives him back to the others but wo...

With Jason and Brett back on ORCA, agents Shelby and Hauser arrive soon after looking for Neri. Prax...

Praxis closes in and apprehends the kids at the farm. Jason and Brett are returned to ORCA while Ner...

Shersheba makes a surprise visit to ORCA and Dianne gives Jason the task of showing her around the s...

Praxis's return to ORCA prompts Cass and Brett to seek Winston's help to delete all of Helen's recor...

Jakamarra takes Jason and Neri to where he has hidden the Golden Ankh. Malakat is able to determine...

Neri is taken back to Praxis headquarters where she is interrogated. Neri's captures prompts Jason t...

Malakat and Shersheba attempt to unleash the power of the pyramid by are told by Shalamorn that the...

Neri is brought back to ORCA but she cannot be revived. Malakat and Shersheba successfully charge th...

Jason and Winston climb the mountain on Neri's island to install surveillance equipment. Making thei...

Jason and Brett return with Neri to their father's farm for Jason's birthday but soon after arriving...

On the Ocean Planet, Mera is pursued by the rebels but is able to reach safety in the Pyramid of the...

Mera's spacecraft splashes down in the ocean and as she swims to the surface she is surrounded by Co...

Richter talks Elly Hauser into rejoining agent Shelby on newly a reopened Project Phoenix. Winston,...

Shelby requisitions the minifin to get a closer look at the underwater pyramid, Diane assigns a relu...

Budds Praxis begins moving their equipment onto ORCA, including several nuclear weapons. Jason and B...

Paul and Brett Bates are given an audience with the Global Union's Madam President to voice their op...

As the red virus spreads through the ocean, Jason must restrain Neri from going to Charlie's aid. Th...

With an attack against the aliens pending, all non-essential personnel are being evacuated from ORCA...

With the melting of the polar icecaps well under way, Malakat prepares for the invasion of Earth wit...

As Praxis again prepares to launch their nuclear torpedo at the pyramid, commandos storm ORCA allowi...

Asleep on her island late at night, Neri has a vision of her mother, she tells Neri that it is ""her...