Three cowboys trick a magician into helping them rob a bank by taking Bat Masterson's gun "as a joke" before he enters the bank. Bat and the magician team up to recover the loot through the aid of another conjurer's stunt.

While awaiting a murder trail in which he will be the star witness, Bat visits a Mexican ranch where, he is told, a fortune in jewels awaits. It's a trap, though, set by the defendant's uncle and Bat will face a firing squad at dawn.