In San Francisco, detective partners Jack Packard and Doc Long are hired by socialite Jefferson Monk who believes someone is following him with the aim to kill him.

Outlaws plan a robbery to take place during a championship prizefight in Carson City, Nevada.

A California railroad agent hunts two brothers for murder and robbing a payroll express.

William Warner is a lawyer who is famous for his skill at opening any kind of lock, making him a valuable commodity. William is unknowingly enlisted by German spies who want him to open a chest containing a secret formula. This leads to a madcap adventure involving spies, the police and lots of picked locks!

Love-starved gun molls (Carole Mathews, Beverly Michaels) escape from a prison farm where matrons make their lives miserable.

Bounty hunter Luke Welsh arrives looking for a wanted man. When that man draws on him he has to kill him. To collect his reward he needs a statement identifying him. But the man was well liked in town and no one will sign such a statement. When he outdraws another man who thought he was faster, some townsmen decide he should be killed and they organize a mob to go after him.