Hoppy and a young minister try to convince a boy who's just committed his first holdup that his gunman idol has feet of clay.

As they ride into an apparently deserted town, Hoppy and Red are shot at, and then discover the town's only resident, also shot and left for dead.

Hoppy and Red discover that two outlaws have ambushed the sheriff of Stone Valley and determine to help the local ranchers against an exploiter who wants to take over the valley and sell it ti the cavalry.

Hoppy encounters bank robbers who are trying to recover the loot they hid in an old wagon inside the Twin Rivers livery stable.

Hoppy and Red help the U.S. Immigration Service investigate the deaths of smuggled Chinese aliens.

Assigned to guard the workers building Arizona's first telegraph line, Hoppy learns that a supposedly retired man who owns several stores will lose a fortune if the line is completed, and uses wiretapping to foil a sabotage scheme.

Hoppy risks death to convince the family and friends of vanished rancher Tom Murdock that his ghost has not returned from the dead to haunt them.

In his search for a gang counterfeiting Mexican currency, Hoppy learns that the Twin Rivers newspaper is printing more than news.

Hoppy tries to clear an old prospector who's been found in possession of the gold stolen in a train robbery.

Hoppy steps in when a notorious outlaw tries to force his honest father and brother to help him collect the reward for his own capture.

Hoppy helps an old settler and his son fight a land grabber who's determined to take over their ranch.

Hoppy frightens an outlaw gang by writing in prominent places the code numbers 3-7-77, the symbol of a band of vigilante terrorists.

While chasing a murderer, Hoppy and Red are locked in a shrine with an emerald religious statue during a Mexican festival.

Hoppy and Red are trapped in a burning house by a lovely young woman who has robbed a bank while posing as an old lady.