Set against the beauty of Far North Queensland, Ocean Girl is the story of Neri, a mysterious young girl from the ocean, who is discovered by the young inhabitants of an underwater research colony.
Genre: Action, Adventure, Family
Cast:Marzena Godecki , David Hoflin , Jeffrey Walker , Alex Pinder , Nina Landis , Liz Burch , Brooke Anderson , Nicholas Bell , Tony Briggs , Lauren Hewett , Miki Oikawa , Kerry Armstrong , Sudi de Winter , Joel De Carteret , Cassandra Magrath , George Henare , Tharini Mudaliar , Bruce Hughes
Winston calls Dianne and her sons back from their vacation informing them that UBRI has won the contract to construct ORCA City and their plans threaten a nearby fish breading ground.
Brett talks Jason and Neri into looking for a way into the spacecraft they found buried on Neri's island their search is unsuccessful. Brett and Benny meet Cassandra, a new arrival from ORCA's sister station near Florida.
Jason and Brett steal a pump from UBRI supplies on ORCA so they can pump out the spaceship. Cass and Brett trade practical jokes but when they team up to get Cass's sister Morgan, they also catch the Commander in their soapy trap.
Jason and Brett are about to force the chamber open when Neri finds the controls that open the chamber and revive its occupant. He comes to and says his name is Kal. He is shown around the island where he seems to be content to live.
Concerned about Kal's development, Neri asks Jason to talk to him. After telling him to stay on the island, Kal follows Neri to ORCA.
Hoping to keep Kal from making any return trips to ORCA, Jason suggests to Neri that she show him around the spaceship which he has been interested in.
Neri goes to ORCA to see how Jason and Brett are going with their search for the Synchronium. Dianne takes the opportunity to ask her to help Winston with his dive test which she agrees to do.
Neri awakes on the island to find Kal missing, he's gone to ORCA. Jason and Brett introduce Kal to Diane and Winston. Shortly after, Neri arrives and tells Diane about UBRI's plans to use explosives on the ocean floor in their construction.
Brett locates another piece of Synchronium but interrupts Jason's training exercise to tell him the news. UBRI has also located the piece and mount an effort to retrieve it.
Neri moves the Synchronium piece to her secret underwater cave to keep it safe. Benny's father chastises him for spending time with Brett and Cass instead of studying.
A trip to ORCA prompts a discussion between Neri and Kal about feelings. Cass is beginning to remember about her time on Neri's island in her dreams.
Neri continues to teach Kal about feelings. Cass is still having her dreams about her time on Neri's island and now remembers Brett being there.
Neri receives a message from Mera in a dream warning her that time is running out. Neri goes to ORCA where she warns Dianne that UBRI's development must be stopped.
H.E.L.E.N. is not being cooperative in the kids' search for more pieces of the Synchronium, turning back all their queries. UBRI however is having no such trouble and has already located another piece.
Winston is excited about the arrival of Camilla Sabato (Robyn Gibes) to ORCA, she is a science writer but more importantly, a close friend.
Dianne demands that a tribunal hearing be convened to stop UBRI's development, but Hellegren argues that there is no connection between the earthquake and UBRI's explosions.
Brett tries unsuccessfully to get Kal to come out of the spaceship. Dianne is granted a tribunal hearing to voice her concerns about the effects UBRI's construction is having on the fault line.
Kellar shows Dr. Hellegren the footage she took of Kal on the sandbar, he quickly recognizes who Kal is and wants to capture him. After another of Kal's outbursts at Jason, Neri tells him to change his attitude or leave the island, Kal chooses the latter.
Neri continues to look for Kal but Jason suggests Kal is just trying to teach them a lesson by staying away. Neri receives another warning from Mera.
Kal is in the lap of luxury at UBRI, his room filled with all sorts of toys and games. Kellar, making reference to his failed relationship with Lena, angers Dr. Hellegren by suggesting he is treating Kal like an "obedient son."
Neri has Kal promise not to leave the island again. Lena uses HELEN to locate another piece of the Synchronium. Mera appears to Neri to again warns her that time is running out.
The cadets' exam results are in and after looking at hers, Sallyanne tells Jason he would be better off with another partner. Mera reveals to Neri and her friends that Charlie's song is the trigger that activates the Synchronium.
A large quake hits keeping Lena from accessing HELEN to look for more of the Synchronium.
Budds The growing frequency of the seismic tremors causes Commander Wellington to call for voluntary evacuations of ORCA personnel. Cass tells Morgan to "drop dead" when Morgan gets after Jason for wanting to skip a survey dive.
The effects of the new "Winston Seth" fault line are being felt all around the Pacific Rim as evacuations on ORCA are taking place. Lena locates the final piece of the Synchronium.
A large quake prompts the commander to call for an evacuation of all ORCA personnel under the age of 18.