 Hopalong and his sidekick are two Texas Rangers who are about to leave the service and take up ranching on the Bar 20. The Rangers receive a request for help from a former Texan now living in California. Hopalong has also been persuing a Texan outlaw who has fled to California. When Hopalong turns down the offer to go to California, the younger ranger takes on the job. However, Hoppy soon reconsiders and is made a US Marshal. He and California (a braggart cook) arrive just in time to save the young ranger (now town marshal). The gang, which is stealing haciendas, by taking spanish land grant papers have teamed up with the Texas outlaws. Hoppy unites the caballeros and town folk together to fight the gang and bring law and order to the town.