Eight-year-old Kevin is accidentally left behind when his entire (and large) family makes a frantic rush for the airport. That's the plausible part. Alone and besieged by burglars, Culkin turns into a pint-sized Rambo defending his suburban castle with the wile and resources of a boy genius with perfect timing and unlimited wherewithal. That's the implausible part. Pesci and Stern, the targets of Macauley's wrath, enact painful slapstick with considerable vigor, while Candy has a small but funny part as the leader of a polka band traveling cross-country with mom O'Hara. The highest-grossing picture of 1990, surpassing "Ghost" and "Jaws."