A sheriff (Tom Mix) goes undercover to infiltrate and disband a gang of outlaws. Lucille Powers, Fred Kohler, Edward J. LeSaint, Willard Robertson, Richard Alexander, Capt. C.E. Anderson, Lynton Brent, Franklyn Farnum, Joseph Girard, Bob Milash, Buck Moulton, James Burtis, Slim Cole, Boothe Howard, Frances Sayles, Richard Sumner, Theodore Lorch, George Magrill, Bud Osborne.
Mix covers up his sheriff's badge and dons a black hat in order to finagle his way into Kohler's band of outlaws. Once in the crook's good graces, Mix explodes the whole gang and brings them to justice.