Sergeant Thomas Duncan takes his men behind enemy lines to recover a secret government fighter copter and its pilot, who uses it as a secret weapon. But once stationed in the jungle of Vietnam, their radio breakes and all hope of contacting their home base is gone. Now it is up to Duncan and his men to get to the hook up point by the agreed time. A traitor in the home camp is sending messages to the enemy side. This is why Duncan has to hurry.