Matt and Frankie set out on the trail of cattle rustlers led by one of the West's youngest and most notorious outlaws.

Railroad detectives Matt Clark and Frankie Adams pursue the vengeful James brothers, Frank and Jesse, who declare war on the law after their young half-brother is killed in a police ambush.

Railroad detectives Matt Clark and Frankie Adams go after Apache chief Geronimo, who has been identified by Joe Burns, the night watchman of the railroad yards, as the leader of a band of freight-car robbers.

The U.S. Army calls on Matt Clark (Jim Davis) to help subdue an Indian uprising led by Sioux chief Crazy Horse. Frankie: Mary Castle.

Matt and Frankie head to Sweetwater, Wyoming where major cattle ranches are suffering heavy losses. A woman nicknamed Cattle Kate becomes the focus due the number of livestock she sells despite her small operation.

Henry Plummer is elected sheriff of Bannack, Mont., on a law-enforcement ticket---but then he promptly turns to crime. Matt: Jim Davis. Frankie: Mary Castle.

Matt (Jim Davis) and Frankie join a circus to trap an escaped killer. Frankie: Mary Castle.

Psychopathic killer Harry Tracy's senseless brutality disgusts even the members of his own gang. Matt: Jim Davis.

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Outlaw Butch Cassidy's sense of humor proves his undoing. Matt: Jim Davis. Frankie: Mary Castle.

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"Black Jack" Ketchum took Martha Cullen's husband from her and now he has talked her son into joining his gang. Matt: Jim Clark. Frankie: Mary Castle.

Matt and Frankie witness a boy's murder, which plunges them into a Wyoming range war. Matt: Jim Davis. Frankie: Mary Castle.

Matt Clark (Jim Davis) and Frankie Adams trail a gunman who started the biggest prairie fire in Texas history as part of a swindle. Frankie: Mary Castle.

The Civil War is long over, but two Southern sympathizers are still at it---terrorizing Yankees in the Southwest. Matt: Jim Davis.