In the Ardennes, near the end of World War II, a group of U.S. soldiers awaiting trial for various crimes, escapes thanks to the confusion caused by a bombing, and tries to win over Switzerland. After various adventures, the group is at odds with what it believes to be a German patrol, but in reality is a squad of U.S. soldiers led by Colonel Wagner for a special mission. Taken in by the partisans of Veronique, the fugitives are forced to remedy the incident replacing the men expected by Colonel Charles Thomas Buckner.