Release Message:  Two 20th century astronauts, Virdon (Ron Harper) and Burlke, survive a crash-landing on a planet in the year 3085 A.D. where intelligent apes rule over the inferior humans.

Description:  Two astronauts survive a crash-landing on a planet where intelligent apes rule over the inferior humans. The men find that their own intelligence challenges the apes' dogma - and puts their lives in danger.