This MGM Historical Mystery short follows the life and exploits of killer outlaw Joaquin Murrieta, in California in the 1850s.

Ricardo, the milquetoast son of a Mexican bandit, would rather lead a quiet life in Boston. But the family would rather that he follow in his father's footsteps and become "The Kissing Bandit".

After being shanghaied in a plot to have him declared dead and take over his ranchero and other properties, Don Ricardo, disguised as a peon, returns to Old California, and begins the fight to reclaim what is his.

Esra Kincaid takes land by force and, having taken the Espinoza land, his sights are set on the Castro rancho. Government agent Kearney holds him off till the cavalry shows up and he can declare his love for Juanita, called “the Rose of the Rancho.”