When depositing his winnings, Bat and the bank are robbed by a gang of Mexican bandits. Bat tracks the bandits and their double-crossing female accomplice through Spanish-American communities to retrieve his money and the bank's money.

Bat down and out on his luck is hired as the bodyguard of a beautiful widow. She must wear a fabulously expensive diamond to the Governor's reception that evening but before they can leave the necklace is stolen while Bat is distracted.