As an epidemic of a lethal airborne virus - that kills within days - rapidly grows, the worldwide medical community races to find a cure and control the panic that spreads faster than the virus itself.

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.

Danny Muldoon, a Chicago policeman, still lives with his overbearing mother Rose. He meets and falls in love with Theresa Luna , whose father owns the local funeral parlour. Naturally, his mother objects to the relationship, and Danny and Theresa must either overcome her objections or give up the romance.