A New York gangster and his girlfriend attempt to turn street beggar Apple Annie into a society lady when the peddler learns her daughter is marrying royalty.

Beat cop Bragan is about to go off duty when he discovers a man standing on the ledge of a hotel more than a dozen stories up. Bragan tries to talk the man, Robert Cosick, down from his threatening perch and in the process learns the reasons for the Robert's suicide attempt.

In the old west, a man becomes a Sheriff just for the pay, figuring he can decamp if things get tough.

Questions arise when Senator Stoddard attends the funeral of a local man named Tom Doniphon in a small Western town. Flashing back, we learn Doniphon saved Stoddard, then a lawyer, when he was roughed up by a crew of outlaws terrorizing the town, led by Liberty Valance. As the territory's safety hung in the balance, Doniphon and Stoddard, two of the only people standing up to him, proved to be very important, but different, foes to Valance.

As a result of nuclear testing, gigantic, ferocious mutant ants appear in the American desert southwest, and a father-daughter team of entomologists join forces with the state police officer who first discovers their existence, an FBI agent and, eventually, the US Army to eradicate the menace, before it spreads across the continent — and the world.

An airline pilot pursues a live-in babysitter at his hotel and gradually realizes she is not as stable as perhaps she should be.

Alan Mitchell returns to New York to work for his father Walter, the owner of a fashion house that designs and manufactures dresses. To stay non-union, Walter has hired Artie Ravidge, a hood who uses strong-arm tactics to keep the employees in line.

In New York City, an insolent pickpocket, Skip McCoy, inadvertently sets off a chain of events when he targets ex-prostitute Candy and steals her wallet. Unaware that she has been making deliveries of highly classified information to the communists, Candy, who has been trailed by FBI agents for months in hopes of nabbing the spy ringleader, is sent by her ex-boyfriend, Joey, to find Skip and retrieve the valuable microfilm he now holds.

While on a fishing trip, Harry Baldwin and his family hear an explosion and realize that Los Angeles has been leveled by a nuclear attack. Looters and killers are everywhere. Escaping to the hills with his family, he sets about the business of surviving in a world where, he knows, the old ideals of humanity will be the first casualties.

Susan and Lorenzo have been married for over five years and they are starting to drift apart. So into her life comes an angel, which only Susan can see, to tell her that there will be trouble ahead if they do not work out their problems. Lorenzo is developing insecticide #383 at Finlay Vega Chemical Co. and plans to test it on a camping trip that he takes with Susan, but the trip becomes an obstacle course for him.