As WWII enters its final stage, the US army sends two German prisoners in to the enemy to collect vital information. It is a mission wrought with potential dangers. Despite being almost on its knees, the German army refuses to admit defeat, and the Gestapo is as efficient and ruthless as ever in identifying and dealing with spies. In addition, the two chosen men are loose cannons; Tiger' appears willing to do anything if the price is right, and 'Happy', a world-weary soldier, has his own loyalties which he may not be able to keep secret. It is on these uncertain shoulders that the weight of the mission and the future of the war rests. Can they be trusted to discover the whereabouts of the formidable German unit moving towards the Western front?