Jack Phipps

Wanted for a murder he didn't commit, Lightnin' Jack travels to Arizona where he gets a job on the Manning ranch. Two men are out to get the Manning ranch and see their chance when Manning decides to use Lightnin's horse in the big race. They get Manning to bet his ranch and then kidnap Lightnin' so he won't be there to ride.

In Hell's Valley, Texas Ranger Captain Wally kills Jose Valdez, leading Jose's brothers, Carlos and Manuel, to seek revenge at the Flores ranch. Wally is wounded pursuing them but is saved by Rosita Flores, his original sweetheart's daughter, who nurses him but secretly seeks his torture for her father, and also for herself. Carlos and Manuel fall for Rosita, but she, in turn, falls for Wally, leading to Carlos accidentally killing Manuel and Don Flores killing Carlos, with Wally and Rosita's relationship solidified.