The Golden Seal (1983)

Eric Lee (Torquil Campbell) lives on one of the remote Aleutian Islands off the coast of Alaska with his father, Jim (Steve Railsback), and mother, Tania (Penelope Milford). Locals have been anticipating the return of the legendary golden seal, since the rare mammal is rumored to give birth in area waters, and the creature will fetch a large reward. When Eric finds the seal and its young pup, he becomes determined to save the mother and baby from being harmed in any way.