Kevin McCallister and his family are taking a vacation to Florida. At the airport Kevin loses his family and accidentally gets on a plane to New York City. After enjoying himself there for a while, he runs into his old enemies, Harry and Marv, who have escaped from prison. After finding out they are planning to steal from toy store, he sets up a plan to put them behind bars once again. He sets up traps in an old house, and defeats the duo. Afterwards, he is reunited with his family.