Title: Duck, You Sucker
Language: Italian, Spanish
Country: Italy, Spain
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.
Sergio Leone (story), Sergio Donati (story), Luciano Vincenzoni (screenplay), Sergio Donati (screenplay), Sergio Leone (screenplay), Roberto De Leonardis (dialogue adaptation), Carlo Tritto (dialogue adaptation)