During the World War II, the prisoners of a German camp in a Greek island are trying to escape. They not only want their freedom, but also seek an ineffable treasure hidden in a monastery at the summit of the island's mountain.
Roger Moore
as Otto Hecht
Telly Savalas
as Zeno
David Niven
as Professor Blake
Stefanie Powers
as Dottie Del Mar
Claudia Cardinale
as Eleana
Richard Roundtree
as Nat Judson
Sonny Bono
as Bruno Rotelli
Elliott Gould
as Charlie
Anthony Valentine
as Volkmann
Siegfried Rauch
as Braun
Michael Sheard
as Sergeant Mann
Richard Wren
as Reistoffer
