Having to herd their cattle over Buck Collin's land, the ranchers are building a railroad spur to avoid paying his fees. To stop them Collins has him men rob the stage of the payroll money and also disrupt the construction. But Hoppy has a plan. He lets the Deputy know when the stage will be robbed and then he robs that stage. Collins men try to rob him just as the Sheriff arrives. When Hoppy breaks them all out of jail he is accepted into the gang. (thetvdb.com)