Two violent men bent on revenge in the old west.

A jewel thief crosses paths with a woman carrying a briefcase that the Americans, the Russians and the Chinese all want desperately, so he goes on the run with her figuring that what's inside the case has to be way more valuable than anything he could steal on his own.

At the request of the CIA, British secret agent Lester follows the ominous scientist George King, who, after successfully sabotaging an American rocket launch, has announced to the world's powerful that he can disable any nuclear weapon...

Franco and Ciccio mosey into the Mexican border town of Santa Genoviefa. Both are dressed in ponchos, one rides a small mule, one a large one. They are gun salesmen, peddling their wares from town to town.

Professor Freeman is an important English scientist that is investigating a method to treat cancer. His daughter is killed in the swimming pool of a hotel in Beirut. The case is confidential so that the mission is entrusted to the Special Agent Mikel Brown.