When the astronauts Burke and Virdon, with their chimp companion Galen, are captured in a fishing village that employs human slave labor, they must prove their worth as fishermen or be sacrificed to the 'gods of the sea,' or what the men call sharks. Escaping from the forced labor camp, the trio become involved in a plot to develop a glider to drop a fragmentation bomb on the gorilla council. [The fifth of five telefilms edited from episodes of the 1974 TV series; this film combines the episodes "Tomorrow's Tide" and "Up Above the World So High"]
Ron Harper
James Naughton
Roddy McDowall
Roscoe Lee Browne
Mark Lenard
Booth Colman
Martin E. Brooks
Frank Aletter
Kathleen Bracken
John McLiam
Jay Robinson
Jim Storm
Joanna Barnes
William Beckley
Eldon Burke
Larry Ellis
Frank Orsatti
Ron Stein
Glenn R. Wilder