Sunset Carson rides into the town of Cimarron looking for his brother and the crooks who framed him for cattle rustling. When he's made sheriff, he struggles to keep order in a place overrun by thieves and liars. Cimarron is a wild town overrun by outlaws. Sunset, who was framed as a cattle rustler, has just been released from prison after 3 years when he winds up in Cimarron.