The growing ambition of Julius Caesar is a source of major concern to his close friend Brutus. Cassius persuades him to participate in his plot to assassinate Caesar but both have sorely underestimated Mark Antony.

An American pilot assists the Portuguese colonial police who are battling a gang of criminals involved in drug smuggling from Lisbon to Mozambique to Zanzibar.

An atomic scientist is found floating in a river with a bullet in his back and a radioactive halo around his body. The radioactivity has put him seven-and-a-half seconds ahead of us in time. He teams up with a reporter to stop his evil double from destroying his experiments in artificial tungsten.

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.