It’s Christmas time and the McCallister family is preparing to head to Paris for vacation. Eight year old Kevin is the black sheep of the house who is regularly picked on by his siblings and cousins, and his parents are annoyed by his antics. Kevin finds himself forced to sleep on the third floor of the house.
The next day, the McCallisters accidentally sleep in and barely make it to their flight, but when airborne they realize they forgot Kevin. As his family desperately tries to book a flight back to Chicago, Kevin is thrilled to have the house to himself. However, a pair of burglars named Harry and Marv have robbed a number of houses in the neighborhood and now have their sights on the McCallister home. It’s up to Kevin to thwart them.