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...

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

When John Mason's father is killed, John is wounded. Attracted to his nurse Alice, a conflict arises between him and his friend Ben who plans to marry Alice. John later finds the killer of his father but goes to face him not knowing Ben has removed the bullets from his gun.