"ACHTUNG! Wanted, for Top Secret mission behind enemy lines, men who can speak English with a strong American accent, expert in all types of weapons and unarmed combat. Tough, reliable, ruthless." That notice went round all the crack German Army units. The Nazis got their volunteers, just a handful. They dressed that handful in Yankee uniform and parachuted them behind British and American lines to sabotage the Allied advance. But they didn't reckon on a British sergeant who just hated Yanks!