Heading west, Ken and Bouncer end up at the Brooks ranch where Ken is to ride Tarzan in the big race. But both the Sheriff and Edmonds are after him and he must hide both himself and the horse until race time.

A ranger joins the outlaw gang whose boss he believes is a murderer.

A circus wild animal trainer searches for the son who was taken away from him by a meddling relative years earlier.

A cowboy and sidekick infiltrate a rustler gang to avenge the murder of their pal.

Wealthy Mr. Kennedy shoots his secretary, Channing, during a parlor game, but it turns out the gun was loaded with real bullets. Luckily, criminologist Phillip Montrose is on hand to help the police. When Kennedy quickly ends up dead as well, the police think it's a tidy murder-suicide, but the family lawyer knows of a letter that voiced Kennedy's suspicions about someone who was out to get him. Soon, the cops are on the trail of a ruthless and clever killer who is one step ahead of even Montrose.

A mad doctor is determined to take revenge on the family he believes is responsible for his daughter's death.

A groom-to-be contracts syphilis and wrestles with the consequences of his diagnosis.