Sheriff is aided by Laramie who pretends to be an outlaw to infiltrate a gang of bootleggers. Laramie is attracted to Ellen, who is trying to activate an old mine. He helps her with the mine and captures the bootleggers.

A hugely successful DA goes into private practice after sending a man to the chair -- only to find out later he was innocent. Now the drunken attorney only seems to represent criminals and low lifes.

Claire Forrest seeks her kidnapped scientist father, hidden somewhere on Mystery Island. He is held and forced to work on diabolical inventions by Captain Mephisto, a costumed villain.

A team of two-fisted insurance investigators (one of whom disguises himself as The Masked Marvel) endeavor to discover and thwart the loathsome saboteur Sakima.

A man escapes from prison, then joins up with a gang of stage robbers while at the same time working as a deputy in a distant town, hoping to ultimately find the outlaw who killed his father during a robbery years ago.

Test space rockets exploding at liftoff and increased reporting of UFO sightings culminate in a direct attempt by alien survivors of a dead, extra-galactic civilization to invade Earth from impervious flying saucers, using ray-weapons of mass destruction.

In the 1840's Mexico has ceded California to the United States, making life nearly impossible for the Mexican population due to the influx of land and gold-crazy Americans. Farmer Joaquin Murrieta revenges the death of his wife against the four Americans who killed her and is branded an outlaw. The reward for his capture is increased as he subsequently kills the men who brutally murder his brother. Joining with bandit Three Fingered Jack, Murrieta raises an army of disaffected Mexicans and goes on a rampage against the Americans, finally forcing his erstwhile friend, Bill Warren, to lead a posse against him.

Investigators set out to capture a gang of thieves transporting stolen cash through the U.S. mail.

Brass Bancroft and his sidekick Gabby Watters are recruited onto the secret service and go undercover to crack a ruthless gang that smuggles illegal aliens.

Two Dartmouth football players fall in love with the same girl following college graduation.