 A motley group of Asian prisoners held in the US are given one chance for freedom. They are to go deep into Vietnam and destroy a secret depot of missles that the US left behind during the pull-out. The group, led by Lt. Lam and convict Tung, hook up with a trio of female freedom fighters and a happy go lucky martial artist named  Rat . The entire group is captured by the VC because one of them is a double agent, but they escape, cross an un-crossable bridge, and get to the secret base just ahead of the VC. By this point nearly all of the original group is dead, and it s up to Tung and Rat to fight the VC s leader, a bizarre giggling man who s lightning fast with martial arts.