U.S. Marshal Hopalong Cassidy is called when a town becomes overun with bad guys. Disguised as a member of a medicine show, Hoppy discovers that the ringleader is none other than sweet li'l ol' Ma Burton.
Two young horse traders guide a Mormon wagon train to the San Juan Valley and encounter rugged terra...
One of Hoppy's Bar 20 ranch hands is tricked into participating in nefarious activities after being ...
Posing as a cattle buyer, Hoppy crosses over into Oklahoma where the Jordan brother's and their outl...
Hoppy is leading a scientific expedition and the Chinese who have a hidden settlement nearby are try...
A young Eastern lawyer, seriously injured in a stage holdup, secures the help of Hoppy, California a...
Hoppy, California and Lucky take refuge from a storm inside a supposedly abandoned church outside a ...
Hoppy, Johnny and California go to Arabia to buy some horses. There they get involved with a sheik a...
Burton is after Clark's ranch. He gets the banker to refuse to renew Clark's note and then sends his...
Stagecoach robbers take the money Hoppy was going to use to buy cattle so Hoppy, California and Lin ...
Julie's husband has been murdered and land agents want her to sign away her property rights. Hoppy w...
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. ...
An evil gang is involved in both cattle rustling and the robbing of stagecoaches. Hoppy must stop th...
A crusading newspaper editor recruits his old friend Hoppy to take the job of Marshall in a town rif...