A year after his father's death, Oskar, a troubled young boy, discovers a mysterious key he believes was left for him by his father and embarks on a scavenger hunt to find the matching lock.

Mario Dante (Robert Conrad) is a crime boss in the mafia, He inherits a mob of his own, when his nephews and niece have to come and live with him. Along with Alice (Ann Jillian) his girlfriend, they stumble through mishaps and learn to love each other.

At the University of Chicago, a research team that includes brilliant student machinist Eddie Kasalivich experiences a breakthrough: a stable form of fusion that may lead to a waste-free energy source. However, a private company wants to exploit the technology, so Kasalivich and physicist Dr. Lily Sinclair are framed for murder, and the fusion device is stolen. On the run from the FBI, they must recover the technology and exonerate themselves.

Instead of flying to Florida with his folks, Kevin ends up alone in New York, where he gets a hotel room with his dad's credit card—despite problems from a clerk and meddling bellboy. But when Kevin runs into his old nemeses, the Wet Bandits, he's determined to foil their plans to rob a toy store on Christmas Eve.

When a career criminal's plan for revenge is thwarted by unlikely circumstances, he puts his intended victim's son in his place by putting him in prison...and then joining him.

U.S. Marshal Sam Gerard is accompanying a plane load of convicts from Chicago to New York. The plane crashes spectacularly, and Mark Sheridan escapes. But when Diplomatic Security Agent John Royce is assigned to help Gerard recapture Sheridan, it becomes clear that Sheridan is more than just another murderer.