Jerry Mason, a young Texan, and Jake Benson, an old rancher, become partners and strike it rich with a gold mine. They then find their lives complicated by bad guys and a woman.

John Wayne portrays Singin' Sandy Saunders and has a reputation as the most notorious gunman since Billy the Kid. That's somewhat ironic though, since it's later revealed that he's a special Secret Service agent sent from Washington to investigate a land swindle scheme under the direction of town boss James Kincaid (Forrest Taylor).

When Sheriff Jake sees a man at the safe and then finds the payroll gone, he trails him. Just as he is about to arrest him, the man saves his life. Still suspicious, he joins up with the man and later they learn that Melgrove, the towns leading citizen, is trying to take over the area's ranches by having his gang stop all incoming supp...

Sheriff John Higgins quits and goes into prospecting after he thinks he has killed his best friend in shooting it out with robbers. He encounters his dead buddy's sister and helps her run her ranch. Then she finds out about his past.

John Travers and Yak, his faithful Indian sidekick, pick up where a murdered sheriff leaves off, and try to nab the mysterious Shadow.