Ocean Girl plot
Neri is a girl who lives alone on an island. She can swim underwater for a long time and communicate with her whale "Charlie". She rescues the brothers Jason and Brett and later become friends. Jason and Brett live at the underwater research center ORCA, where their mother Dr. Dianne Bates and assistant Dr. Winston Seth research whale behavior in Australia's coral reef. A rival organization called UBRI Corporation, led by Dr. Hellegren, learns that an alien spaceship has landed nearby, and they try to get their hands on it.