Arms trafficking with the Indians on the one hand and acquiring documents concerning the ownership of a goldmine on the other are the principal interests of Quin and Gomez, the highly suspicious guests at Papa Martinez' inn.
Jerry, Reno and Paco are in prison, where they meet a young Mexican man who claims he has been convicted for a crime he hasn't committed. Mysteriously, the three men are released of prison and proceed to prove the Mexican man's innocence.
The mysterious Conte di Cagliostro holds supernatural powers he uses to heal the poor, but his activity is considered dangerous by the 18th century's establishment...
J. Chandler is sentenced to death only to re-emerge as his own brother, courtesy of the CIA who have arranged the subterfuge so they can use him as a double agent.