A gunfighter takes the identity of a murdered judge in order to avenge his death.

A western town is being overrun and ruled by a gang of outlaws led by Bart (John Merton). Former Ranger Tim (Tim McCoy) is called out of retirement and assigned to clean up the gang. He disguises himself as a Mexican bandit, joins the gang and works from within.

Framed by Major Jenkins, Capt. Travers is kicked out of the Army. When Travers, now living with the Indians, is captured by Jenkins, the Indians attack the fort. With his men greatly outnumbered Colonel Burke realizes that Travers is their only chance.

Shortly after Moody Pierson saves Sheriff Tim's life, Moody is arrested for murder. Tim doesn't believe he did it and lets him get away. Kicked out as Sheriff, Tim goes after the real kiler and this leads him to the town controlled by Red Slavins.

"The war with Mexico serves to bring together American officer and Mexican senorita, the former all ardent and the latter defiant because of the fact that their countries are at war. Coincident with the American victory is the successful conquest by the 'gringo' of the girl's heart."

The Rough Riders are after a gang of rustlers. Marshal Roberts is posing as a wanted outlaw, McCall is the Marshal supposedly after him, and Sandy is on hand as a cook. Roberts hopes his joining the gang will help bring them in.

A marshal is sent to clean up a mining town being terrorized by an organized gang that is killing miners and stealing their claims.

Chasing jewel thieves, Captain Carson and Magpie head for the border where Carson, posing as a Chinaman, opens a store that buys jewelry. To flush the thieves into the open, Carson wins all their money at poker. They agree to sell him the jewels but plan to kill him and keep both the jewels and the money.

Jack Manning (Tim McCoy) arrives in a midwestern town from Gold Creek in Califonia. He brings a message from Goerge Woods (Francis Ford) to his brother Tom Woods (Francis Ford), in a dual role, and niece Mary (Allene Ray, informing them he has struck gold and asking them to join him in California via a wagon train. Jack and Mary fall in love to the great displeasure of Rance Carter (Wilbur McGaugh) who has a yen for Mary himself. Jack and Mary not only have to be wary of Carter's crooked ways and machinations, but also of Indian uprisings, caused by Carter.

During the French and Indian War the Indians under Pontiac kidnap Rene. Colonel O'Hara hopes to rescue and wed her.

El Puma, a Mexican desert guide, escorts an archaeological expedition headed by Professor Lucius Lloyd through the Indian badlands of Mexico. Marian, the professor's niece accompanies the party as only she can translate the Aztec writings in the diary of her father, murdered on a similar expedition six years previous. The professor is murdered by a knife, and the weapon is recognized as the property of El Puma. Magpie, a Federal Investigator, knows that El Puma is really "Lightnin' Bill' Carson, a former federal agent who has been missing since Marian's father was slain. The reluctant Magpie believes that his old pal is guilty. Carson sets out to prove otherwise.

A miner who was swindled out of his mine by a banker turns to robbing stagecoaches. Several years after he is tracked down and killed, his son comes to town to tangle with the banker.

The Rough Riders are called in to help save Master's stage line. Taggart has his gang robbing the stages and shooting the drivers. When Buck drives the next stage, Taggart's men rob it and then make it look like Roberts is part of the gang. Written by Maurice Van Auken

A Treasury Department engraver is being held captive by a counterfeiting gang that wants him to make counterfeit plates for them. A lawman is sent to rescue him.

Two ex-cons plan to kill the range rider marshal who sent them to prison and, when their plan fails, join forces with their former boss, a crooked saloon owner who has the same idea.

When Texas Grant rides into town people think the supposedly dead Jim Rawlins has returned. After a confrontation with Utah Becker, Grant learns Jim's wife, Helen, is about to lose her ranch to Becker, so he decides to stay and pose as Rawlins in an effort to help her.