Overview
The world is shocked by the appearance of three talking chimpanzees, who arrived mysteriously in a spacecraft. Intrigued by their intelligence, humans use them for research - until the apes attempt to escape.
Cast & Crew
Director: Don Taylor
Cast: Roddy McDowall, Kim Hunter, Bradford Dillman, Natalie Trundy, Eric Braeden, William Windom, Sal Mineo, Albert Salmi, Jason Evers, John Randolph, Harry Lauter, M. Emmet Walsh