When a Luftwaffe officer is murdered in a Scottish World War II POW camp, the investigating Irish intelligence officer (Brian Keith) comes to find that a cagey U-Boat captain (Helmut Griem) knows more than he's telling. Was the homicide in furtherance of a scheme for a mass prisoner escape...and will it be too late when the conspirators tip their hand? Taut military thriller co-stars Ian Hendry, Horst Janson. 108 min. Widescreen (Enhanced); Soundtrack: English Dolby Digital mono; theatrical trailer.