Zappin’ Rustlers is the story of Sonny, a constable in a rural Texas county. Elected without opposition just after he graduated from high school, Sonny feels the scorn of local citizens who don’t accept him as a full-fledged lawman, and he dreams of opportunities to prove himself. With help from another young lawman, an unusual invention supplied by a friend, and advice from his girl friend, Sonny is able to achieve that goal. But he stumbles all the way to success, with unexpected consequences.