Just as the infamous Daltons are being transferred to a Mexican prison, robbers attack the van and kidnap the Daltons without realizing it. Disappointed with their booty, they decide to hang the four brothers. In order to save their lives, brother Joe offers to share all his knowledge of organized c...

Just as the infamous Daltons are being transferred to a Mexican prison, robbers attack the van and kidnap the Daltons without realizing it. Disappointed with their booty, they decide to hang the four brothers. In order to save their lives, brother Joe offers to share all his knowledge of organized crime with the leader of the bandits, Don Emilio. Meanwhile, the governor sends Lucky Luke to their rescue.