The friendship between two orphans endures even though they grow up on opposite sides of the law and fall in love with the same woman.

A stagecoach line hires an agent to stop a string of robberies of gold shipments.

When Buck is young his cattle stealing father is killed. Now grown Buck returns home still carrying the burden of his father's reputation. When he is framed for rustling, he finds an object that identifies Milt Fergus, the brother of his girl friend, as the rustler. Getting bailed out of jail he and his Uncle Ford have a plan to trap Milt.

Janet Allison witnesses Art Holden and his gang hold up the Station Agent. When she identifies Holden to the Sheriff, the Sheriff gives Holden an alibi. Janet and Jim Fentriss then find Holden's secret hideout. When Janet returns the next day to meet Jim, Holden makes her a prisoner and waits in ambush for Jim to arrive.

A man impersonates his double to clear himself of a murder conviction.

An evil gang is involved in both cattle rustling and the robbing of stagecoaches. Hoppy must stop them without help from the sheriff who turns out be a major outlaw himself.

Hoppy returns to find Johnny in trouble. Buck Peters has been shot by Porter who made it look like Johnny did it. When Johnny flees he runs into Linda. He takes a liking to her only to learn her father Shanghai is one of Porter's gang. Going after Shanghai, he gets captured by the gang and Porter now plans to kill him. But Hoppy is near by and Johnny will get unexpected help from Shanghai.

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.

A rookie cop tries to prove his friend is innocent of a robbery, despite the police commissioner's objection to his use of a trained German Shepherd dog named Ace.

Two men stumble into an old mansion, and get involved with a crazed scientist, torture chambers and sinister medical experiments.