Giù la testa (1971)

In Mexico at the time of the Revolution, Juan, the leader of a bandit family, meets John Mallory, an IRA explosives expert on the run from the British. Seeing John's skill with explosives, Juan decides to persuade him to join the bandits in a raid on the great bank of Mesa Verde. John in the meantime has made contact with the revolutionaries, and intends to use his dynamite in their service.