Hobo poet Sundown Slim meets his old friend Billy Corliss in a Western saloon. Billy, in poor health as a result of injuries sustained in a train wreck, now owns the Concho cattle ranch with his brother Jack who runs the ranch. Sundown obtains a job at the Concho and becomes embroiled in the Corliss' battle with their sheeprancher neighbors, the Fernandos. When Loring, one of Jack's employees, attacks Fernando's daughter Anita, Jack fires him but Fernando, not satisfied, vows revenge on Jack, then shoots Billy by mistake.

In 1877, thieves Ace Beaudry, Bronco Dawson and Bull Stanley head West together after having each been betrayed by a woman. They come across a wagon train bound for the town of Custer, where hundreds of people are gathering for a land rush in the Dakotas, which President Ulysses S. Grant has opened to settlers thanks to a treaty with the Sioux Indians. After the three rogues ride off, they spy a lone wagon with a tempting string of thoroughbreds. Before they can steal the horses, however, the wagon is attacked by a gang led by Layne Hunter, a shifty saloon owner from Custer. The trio chase off the gang, and as they are about to abscond with the horses, they find pretty Lee Carleton, whose father was killed in the attack.

Secret Serviceman Allen takes a job at Bart Stevens' mine in order to find evidence proving that Stevens is a mail robber named Smoke Gublen. He does - but by then, he is in love with the man's sister - and to make things harder, Stevens saves his life...

Jode MacWilliams, a cowboy working on the Circle O ranch, has a crush on the boss's daughter, Peg. After his friend writes a love letter for him, an Indian steals and delivers it to Peg. Meanwhile, word of Jode's affection reaches Peg's father, who has a decidedly less romantic view of this young couple.