The film depicts an account of Allied Combined Operations Headquarters commandos executing a daring raid on the German-occupied French coast during the Second World War. The story is based on the commando raid on the French port of St. Nazaire.
Lloyd Bridges
as Maj. James Wilson
Andrew Keir
as Capt. Owen Franklin
Sue Lloyd
as Sue Wilson
Mark Eden
as Lt. Cmdr. Donald Kimberly
Maurice Debham
as Rear Adm. Sir Frederick Grafton
Glyn Owen
as Forrester
Howard Pays
as Lt. Graham
Walter Gotell
as Van Horst
