On a cattle drive Hoppy, camp cook Windy, companion Lucky, and young Artie Peters encounter an eccentric professor. The professor professes to be searching for the evolutionary missing link, but in reality he is a cattle rustler who uses his dynamite to scatter the cattle in order capture some of them. Hoppy and Bar 20 guys ultimately capture the professor.
A group of "Phantom Raiders" interfere with a cattle drive from Texas to Abilene; fortunately, U.S. ...
Following the Civil War, headstrong rancher Thomas Dunson decides to lead a perilous cattle drive fr...
When his cattlemen abandon him for the gold fields, rancher Wil Andersen is forced to take on a coll...
During the Klondike Gold Rush, a misanthropic cattle driver and his talkative elderly partner run af...
Down-and-out cowhand Jim Garry is asked by his old friend Tate Riling to help mediate a cattle dispu...
When three Texas Rangers try to investigate kidnapped Mexicans being used as forced labor in the min...
Stephen Westcott and Ed Martin scheme to put Jane Travers' wagon line out of business. They want to ...
When he runs for sheriff, Hoppy is beaten by Jerry Doyle, the gutless wonder voted for by every croo...
Hoppy and Lucky have been called in to investigate a series of stage holdups. The robbers are taking...
Hoppy, Lucky and California search for a mine owned by Trudy Pendleton after it was taken from her b...
Finishing a trail drive, Hoppy and the boys head to town and immediately get caught up in the confli...
Sue Morgan gets Hoppy and his friends to join their expedition looking for Indian artifacts. Expedit...
Before he was killed by Mark Foster's men, Bud Lawton willed part ownership in his ranch to Hoppy an...
Joe Weller has instigated a conflict over water rights between two ranchers. The idea is to have the...
As rustled cattle have mysteriously disappeared, Johnny sends for his friend Hoppy, Hoppy arrives an...
Hoppy is busy chasing stagecoach bandits who sing as they rob.
Lee Garvin has eloped with the daughter of a railroad man who didn't approve of the marriage. Hoppy ...
European bad guy Baron Bendor leads some local townsmen in a plot to obtain horses through theft. Ho...
Hopalong Cassidy and Johnny Nelson ride to the mountains to help a man and his daughter save their l...
When Ranger Hoppy's falsely accused young ranger friend is killed while supposedly trying to escape ...