A Los Angeles fire captain (Roy Roberts) sends an arson-squad rookie (George Cooper) undercover.

During the Klondike Gold Rush, a misanthropic cattle driver and his talkative elderly partner run afoul of the law in Alaska and are forced to work for a saloon owner to take her supplies into a newly booming but lawless Candian town.

Roy Martin aka Roy Morgan is a burglar and former war-time Radio & Electronics Engineer who listens in to radio police calls, allowing him to stay one step ahead of the cops.

The first manned expedition to Mars is invaded by an unknown life form, which stows away on the rescue ship.

Captain Stone's newly recruited officer, Tom Merriam, idolizes his senior who treats him like a friend. But when a couple of his crew members die mysteriously, Tom starts doubting Stone's authority.

Teenager Susan Turner, with a severe crush on playboy artist Richard Nugent, sneaks into his apartment to model for him and is found there by her sister Judge Margaret Turner. Threatened with jail, Nugent agrees to date Susan until the crush abates.

A gang of bank robbers is pursued by an insurance investigator.

Janet Spencer is driving down a country road when one of her tires blows out. This seemingly innocuous, everyday occurrence leads Linda into a labyrinth of murder, blackmail and intrigue.

Police sergeants Johnson and McManus take on Los Angeles confidence tricksters. Con man Tony Wells, lining up rich widow Jessica Royce as his latest mark, sets up a false paranormal society with other charlatans to convince the credulous Jessica that her late son is speaking to her through their sham seances. When the plan leads to murder, Johnson and McManus must bring the group down before they kill again.

Cop Andy Doyle investigates a car-bombing murder and the killing of a sleazy modeling agency owner. Are they connected?