When fugitive human astronaut Virdon is shot, his chimp companion Galen must charm an old flame into accepting that a book on human surgery is no hoax. Meanwhile, their friend Burke is captured by the ape authorities and is to be brainwashed by a brilliant ape scientist named Wanda. [The fourth of five telefilms edited from episodes of the 1974 TV series; this film combines the episodes "The Surgeon" and "The Interrogation"]
Ron Harper
as Alan Virdon
James Naughton
as Pete Burke
Roddy McDowall
as Galen
Jacqueline Scott
as Kira
Martin E. Brooks
as Leander
Norman Burton
as Yalu
Booth Colman
as Zaius
Mark Lenard
as Urko
Phillip Montgomery
as Jordo
David Naughton
as Dr. Stole
Michael Strong
as Travin
Jamie Smith-Jackson
as Girl / Arna
