Bank robbers and killers cause mayhem in a small western town.

Hoppy and Lucky are headed to South America to deliver a heard of cattle. Bay guy Ralph Merritt gets in their way. For a while.

Lee Garvin has eloped with the daughter of a railroad man who didn’t approve of the marriage. Hoppy steps in when the young man is framed for murder.

Three US sailors aboard a decoy ship fight German U-boats in World War I and try to win Sally who works on the Coney Island midway.

Western pardners Jeff and Cash find a baby boy in an otherwise deserted emigrants’ camp, and clash over which is to be “father.” They are still bitterly feuding years later…

Hopalong Cassidy and Johnny Nelson ride to the mountains to help a man and his daughter save their logging business from someone who is sabotaging their efforts.

The local school is causing Hoppy problems. First Bar 20 cattle are stolen when Hoppy investigates a problem there. Then the new teacher arrives and disrupts the routine of the…

Hoppy and Lucky have been called in to investigate a series of stage holdups. The robbers are taking gold from Colby’s mine and Hoppy suspects it may be ex-outlaw Colby…

Hoppy, Johnny and California go to Arabia to buy some horses. There they get involved with a sheik and a harem and a kidnapping plot.

Hoppy clears Lucky on a charge of bank robbery and foils the plot of a crooked lawyer to rustle a herd of pedigree cattle and take over the valley.