Sergeant Pete Jenkins, a veteran Commando, was posted to Yugoslavia in the autumn of 1944. His mission was to assist and train a Partisan resistance group in their fight against the brutal occupying Nazis and their followers - a militia known as "The Black Wolves".
But there was a snag, the enemy seemed to know the Partisans' every move. There had to be a traitor in their midst. Everyone was under suspicion - Pete included.