Finishing a trail drive, Hoppy and the boys head to town and immediately get caught up in the conflict between school teacher Miss Abott and next door saloon owner Mawson. When Miss Abott disappears, Hoppy gets a clue to her location and rescues her from Mawson's cabin. It looks like Mawson is the man he wants, but Hoppy finds an item that indicates otherwise.
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 ...
A town bedeviled with outlaws sends for Hoppy, Lucky and California after their own vigilante commit...
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. ...
U.S. Marshal Hopalong Cassidy is called when a town becomes overun with bad guys. Disguised as a mem...
An evil gang is involved in both cattle rustling and the robbing of stagecoaches. Hoppy must stop th...