William J. Creber,Jack Martin Smith,Don Taylor,Walter M. Scott,Roddy McDowall,Kim Hunter,Bradford Dillman,Natalie Trundy,Eric Braeden,William Windom,Sal Mineo,Albert Salmi,Jason Evers, John Randolph
Distributeur:
APJAC Productions
Synopsis
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.