A would be private eye gets mixed up in a smuggling case.

Allied prisoners of various nationalities pool their resources to plan numerous escapes from an “escape-proof” German P.O.W. camp housed in a Medieval castle.

Robert Culp plays Bracken, whose life seems perfect until his wife Ellen and their children are kidnapped by terrorists one day. After failed attempts to capture them back by the police, Ellen’s ex husband enters the fray and plans his own rescue attempt. James Coburn plays McCabe, Ellen’s ex-husband who hires a crew of professional hang gliders to help him rescue her and the kids from the terrorist’s mountain top lair.