Home Alone 3 is a 1997 American family comedy film written and produced by John Hughes. It is the third film in the Home Alone series and the first not to feature actor Macaulay Culkin and the cast from the previous films, nor director Chris Columbus and composer John Williams. It is also the final film in the Home Alone franchise to receive a theatrical release. The film is directed by Raja Gosnell (in his directorial debut), who served as the editor of both original films. It stars Alex D. Linz and Haviland Morris. The film tells of an eight-year-old child prodigy who defends his home from a dangerous band of spies who work for a North Korean terrorist organization.
Peter Beaupre, Alice Ribbons, Burton Jernigan, and Earl Unger are four internationally wanted spies working for a North Korean terrorist organization. After stealing a $10 million missile-cloaking microchip, the spies put it inside a remote control car to sneak it past security at the airport. However, a woman named Mrs. Hess inadvertently takes the spies’ bag containing the car, while returning home to Chicago. The four spies arrive in Chicago and systematically search every house in Hess’s suburban neighborhood to find the chip.
8-year-old Alex Pruitt is given the remote control car by Hess for shoveling her driveway, but she lectures him for scratching in public. He returns home and discover that he has chickenpox and must stay out of school. The next day, Alex discovers the spies while spying on his neighbors. After two failed attempts at reporting them, Alex attaches a camera to the remote control car and uses it to spy on them, leading to the spies chasing it when they spot it. Wondering what they want with the toy car, Alex opens it and discovers the stolen chip. He informs the local Air Force Recruitment Center about the chip while asking if they can forward the information about the chip to the right authorities.
The spies finally realize that Alex has been watching them and decide to break into his house. Alex rigs the house with booby traps with help from his pet rat Doris and his brother’s loud-mouthed parrot. Beaupre, Alice, Jernigan and Unger break in, spring the traps, and suffer various injuries. While the four pursue Alex around the house, he flees and rescues Hess, who has been duct taped to a chair in her garage by Alice. Beaupre ambushes Alex, but Alex uses a bubble gun resembling a Glock to scare him off and rescue Hess.
Meanwhile, FBI agents arrive at Alex’s siblings’ school after being tipped off. Alex’s family brings the agents and the police to their house, where they arrest Alice, Jernigan, and Unger. However, Beaupre flees to the snow fort in the backyard. The parrot drives the remote control car into the snow fort and threatens to light fireworks, which are lined around the inside. Beaupre offers a cracker in exchange for silence, but the parrot demands two. Since Beaupre has only one, the parrot then lights the fireworks and flees. Beaupre is discovered and arrested.
Later, the Pruitts, Agent Stucky, and Hess celebrate with Jack returning home from a business trip, while Alex’s house is being repaired. The spies are shown to have contracted Alex’s chickenpox during their mugshots.