When chain gang prisoners attack their guards, some of the hardened criminals escape Brazil's infamous Anchieta Prison amidst all the pick-ax carnage. The government dispatches a machine-gun squad to round up the fugitives, who have fled by foot and boat and now have begun to turn on each other.

Arturo de Córdova
as

Carlos Cotrim
as

Sadi Cabral
as

Tônia Carrero
as

Allan Lima
as

Wilton Franco
as

Paulo Montel
as

Steve Conte
as Convict

Fred Hoffman
as Rourke

George Mitchell André
as Dr. Ingel (uncredited)