Arms dealer Yolaf Peterson aims to make a sale to guerilla Mongo, but the money is locked in a bank safe, the combination known only to Professor Xantos, a prisoner of the Americans. Yolaf agrees to free Xantos, accompanied by reluctant guerilla Basco, but a former business partner of Yolaf's- John 'The Wooden Hand', has other ideas.

Bill Meceita, a boy whose family was murdered in front of him by a gang, sets out 15 years later to exact revenge. On his journey, he finds himself continually sparring and occasionally cooperating with Ryan, a gunfighter on his own quest for vengeance, who knows more than he says about Bill's tragedy.