Hoppy, Lucky and California search for a mine owned by Trudy Pendleton after it was taken from her by thw swindling gambler Ace Gibson. They find the mine and Hoppy fights Gibson over it.

Two jobless Americans convince a prospector to travel to the mountains of Mexico with them in search...

On her b-day, settler's daughter Apanatschi receives her father's secret gold mine but greedy neighb...

Rex, Slim and the boys are fired by a wealthy rancher but decide to help him out when his daughter i...

A cowboy and a beautiful girl inherit a supposedly haunted gold mine.
Evil Red Sampson and his band of rustlers shoot up Mineral Point, the ranch of William Conway, owner...

Hoppy's friend Dennis owns a rich gold mine. Frazier who owns the adjoining mine and wants the Denni...

The local school is causing Hoppy problems. First Bar 20 cattle are stolen when Hoppy investigates a...

Escaped criminal "The Fox" hates Hoppy and a Rurales colonel for imprisoning him and lures Cassidy t...

Caldwell and Nixon have their men rob the stage and then critcize the Sheriff for not catching the r...

Hoppy and Lucky are headed to South America to deliver a heard of cattle. Bay guy Ralph Merritt gets...

Buck Colins heads a group of local ranchers who are trying to prevent the railroad from completing i...

Hoppy goes to town to help Marshal Windy with some rustlers and winds up helping the widow Joyce whe...

Hoppy goes undercover as a gambler from the East when Bar 20 cattle are stolen by unknown rustlers. ...

U.S. Marshal Hopalong Cassidy is called when a town becomes overun with bad guys. Disguised as a mem...

A crusading newspaper editor recruits his old friend Hoppy to take the job of Marshall in a town rif...

On a cattle drive Hoppy, camp cook Windy, companion Lucky, and young Artie Peters encounter an eccen...

Hoppy's brother has been murdered and he is on the trail of the murderers. To get them he makes hims...

Problems come in the form of one of Hopalong Cassidy's neighbors, but the matter is settled when Hop...

The U.S. Army needs more horses for the Spanish-American War. Hoppy must turn his Bar 20 cowhands in...

Hoppy goes undercover as an outlaw (which permits him, for once, to drink and be mean to children) t...