Amidst his parents' impending divorce, Kevin McCallister must foil his old nemesis Marv and his wife Vera's plot to kidnap a Crown Prince.
Kevin McCallister's parents have split up. Now living with his mom, he decides to spend Christmas with his dad at the mansion of his father's rich girlfriend, Natalie. Meanwhile robber Marv Merchants, one of the villains from the first two movies, partners up with a new criminal named Vera to hit Natalie's mansion.—Anonymous
Caught in the middle of his parents' impending divorce, the now-nine-year-old Kevin McCallister reluctantly accepts to spend Christmas with his dad's affluent new girlfriend, Natalie, at her lavish mansion crammed with the latest hi-tech gadgets. Once more, Kevin will find himself home alone and neck-deep in trouble when Marv--the remaining member of the notorious Wet/Sticky Bandits in Home Alone (1990) and Home Alone 2: Lost in New York (1992)--and his equally maladroit sidekick wife, Vera, cross paths with him, intent on pulling off the ultimate Yuletide heist. However, Kevin is already an expert in thief psychology, and, this time, the house is bigger, and the crime-fighting equipment is more sophisticated. Will things work out between Kevin's parents? Under those circumstances, can he take back the house?—Nick Riganas
Caught in the middle of his parents' impending divorce, the now-nine-year-old Kevin McCallister reluctantly accepts to spend Christmas with his dad's affluent new girlfriend, Natalie, at her lavish mansion crammed with the latest hi-tech gadgets. Once more, Kevin will find himself home alone and neck-deep in trouble when Marv--the remaining member of the notorious Wet/Sticky Bandits in Home Alone (1990) and Home Alone 2: Lost in New York (1992)--and his equally maladroit sidekick wife, Vera, cross paths with him, intent on pulling off the ultimate Yuletide heist. However, Kevin is already an expert in thief psychology, and, this time, the house is bigger and the crime-fighting equipment is more sophisticated. Will things work out between Kevin's parents? Under those circumstances, can he take back the house?—Nick Riganas
Kevin McCallister (Mike Weinberg) is upset that his parents got divorced. Worse yet, things are heating up between his father Peter (Jason Beghe) and his love interest, Natalie (Joanna Going). Forced to choose where to celebrate Christmas, Kevin begrudgingly decides to go to Natalie's mansion, where the guests include a foreign royal family. Kevin schemes to reunite his estranged parents and -- after Marv Merchants (French Stewart) reappears -- he struggles to protect a prince from abduction.—anonymous
Peter McCallister (Jason Beghe), who is finalizing a divorce from his wife, Kate (Clare Carey), announces to their children, Buzz (Gideon Jacobs), Megan (Chelsea Russo) and Kevin (Mike Weinberg) that he and his wealthy girlfriend, Natalie Kalban (Joanna Going), are hosting the visit of a royal family at her mansion, and invites them to spend Christmas there.Peter and Kate have only been separated 8 months and Kate is angry that Peter intends to marry Natalie when their divorce is final. He wants the kids to spend Christmas with them so that they can get to know their new stepmom.After the three initially refuse, Kevin accepts the offer after being bullied by Buzz (who was supposed to be at the movies with his friends but had to cancel as Kate had a business meeting and Buzz was stuck looking after Kevin and takes it out on him), and revels in the mansion's luxuries. Natalie gives Kevin a key to her smart house.
The next morning, Peter and Natalie go out while Kevin stays with Natalie's servants, Mr. Prescott (Erick Avari) the butler and Molly the maid. Prescott doesn't like Kevin and tells him to keep out when he ventures into the mansion security center.Kevin notices one of his old nemesis', Marv Murchins (French Stewart), and his wife, Vera (Missi Pyle), scouting the house. Marv intends to kidnap the royals and ask for a ransom.
After failing to get Mr. Prescott's attention via the intercom, he drives them away by flooding the mansion (Marv and Vera had come up to Kevin's bathroom and he turned on the shower faucets on full force to throw them off balance but ended up flooding the entire mansion. Marv ends up seeing Kevin and recognizes him). When Peter and Natalie return, they refuse to believe Kevin's explanation, especially since Mr. Prescott claims to have seen nothing. Kevin discovers that the security cameras were turned off during the break-in, leading him to believe that Mr. Prescott is in league with Marv and Vera. To cheer themselves up, Kevin, Peter and Natalie decorate their Christmas tree, although it is later re-trimmed by professional decorators at Natalie's request.
Kate brings over some toys and clothes for Kevin, But Buzz and Megan tag along as they want to check out Peter's new girlfriend.As the mansion is prepared for a party for the royal family's arrival, Peter and Natalie go to pick them up, while Kevin notices Marv and Vera disguised as caterers (let in by Prescott). He traps Mr. Prescott in the freezer, overhears Marv and Vera's plan to kidnap the prince for ransom, and forces them out of a window. The royal family is unable to attend the party because their flight was canceled, so Peter and Natalie decide to announce their engagement instead.Marv and Vera run back into the house and pursue Kevin, who accidentally ruins the party by running into the guests and knocking over an ice sculpture that turns out to be a frozen Mr. Prescott. Angered, Peter sends Kevin to his room, refusing to believe his story and accusing him of trying to sabotage his relationship with Natalie. Later when Kevin is alone, Natalie threatens to evict him if he misbehaves again.
Taking matters into his own hands, Kevin sets up booby traps for Marv and Vera. The next morning, the duo head to the house after Peter and Natalie go to pick up the royals. Kevin tricks and locks Mr. Prescott in the basement, but eventually discovers Marv and Vera's real ally is Molly, who is also Marv's mother. Kevin gets locked in the basement with Mr. Prescott, who admits that he turned off the cameras during the initial break-in as he was taking an unscheduled break from his duties because he despises Natalie, let alone working for her. he and Kevin then apologize for misjudging each other. After several failed attempts to call Kate (Kate calls Natalie's house and is told by Molly that Kevin is out with Peter and Natalie. Kate calls Peter, but Peter tells her that Kevin is back at home), Kevin escapes via the house's dumbwaiter and temporarily traps Marv underneath it. Marv and Vera pursue Kevin through the house, where they spring the traps and suffer various injuries, while Molly gets trapped in the house's elevator.
At the airport, Peter suspects that something is wrong back at the house with Kevin and takes a cab back to Natalie's to check on him. Kate, Buzz, and Megan also drive to the mansion due to the suspicious nature of the calls received by Kevin himself and Molly. Kevin uses an altered recording of Marv's voice to provoke an argument between him and Vera and knocks them down a flight of stairs with a remote-controlled plane. The duo is then tricked by Kevin with a secret wall switch (which is a revolving bookshelf, cum bar. Kevin traps them there and then spins it real fast, so that both of them go flying out), end up being launched onto a chandelier, and are knocked unconscious by their fall. Molly, having escaped, grabs Kevin, but is quickly knocked out by Mr. Prescott who also escaped via the dumbwaiter and calls the police.
As Peter, Kate, Buzz and Megan arrive, Kevin - with Buzz and Megan's help - prevents a final escape attempt from Marv and Vera. The royal family and Natalie arrive, and the offenders' plot to kidnap the prince is revealed to Natalie's shock. Mr. Prescott, per Kevin's advice, resigns from his position as her butler. Realizing that their relationship was built on infatuation rather than love and was affecting his responsibilities as a husband and father, Peter breaks up with Natalie, and reconciles with Kate and their children. Grateful to Kevin for his foiling of the kidnapping plot, the royals spend Christmas with the newly reunited McCallisters, devastating Natalie as Kevin and Prescott give the commands for music to play and snow to fall.