A stagecoach robbery and a train explosion announce the sudden return of the elusive Presidio Kid. Hardly anything is known about the Kid and what triggered these events remains a mystery. In an isolated mountain cabin, Clugh Bendix is nursing a gun wound to the leg, vowing to find out who shot him and why. His journey takes him to the volatile Texas borderlands: right to the heart of the mystery of the Presidio Kid. For Bendix, the mystery becomes a battle and he must rely on his wits and his guns to survive. Long-buried secrets and an unexpected romance are revealed, but what will his fate be when the explosive showdown arrives?