Captain Tom Reynolds (Frank Sinatra) and his band of skilled O.S.S. operatives are in World War II Burma to train the Kachin natives in modern warfare. But jungle combat is more gruelling than Reynolds ever imagined, and after Chinese rebels cross the border to loot and murder American soldiers, Reynolds abandons all notions of 'military protocol' and seeks requital. Steve McQueen (in his first major role) co-stars alongside Charles Bronson and Peter Lawford.