When the marshal of the lawless town of Prairie Port is shot while trying to break up a saloon brawl, Wild Bill Saunders, a newcomer to town, rides in pursuit of Turkey, the marshal's assailant.
When Matt Kilgore and his men frame and then hang an innocent man, Lige Saunders sends for his son Wild Bill Saunders who arrives to find his father shot by Matt's brother. When the brother is killed in his fight with Bill, Matt sends two fake Deputies to arrest Bill whom he then plans to hang. But Matt's sister, attracted to Bill, overhears the plan and rides for help.
Wild Bill Saunders recruits a team of paroled convicts to subdue a lawless gang.
Wild Bill Saunders discovers that his uncle Mort has been murdered by an unscrupulous ranch foreman, Matt Brawley. But before he can right Brawley's wrongs, Wild Bill is arrested for a murder he didn't commit. Sidekick Cannonball Sims and disgruntled girl rancher Joan Darcy plot to break Wild Bill out of jail but Brawley is wise to their plan.