Home Alone 4

Peter McCallister finalizes his divorce from Kate and informs his children that he and Natalie Kalban will host a royal family at Natalie's mansion for Christmas. The announcement stirs mixed feelings among the family, with Buzz doubtful and Kevin curious about living in a palace. Peter hopes the festive plans will bring some happiness before the holidays.

The very next morning Kevin is placed in the care of Natalie's staff, Mr. Prescott and Molly, while Peter and Natalie step out. He notices Marv Merchants and Vera skulking around the house and feels a sudden need to protect his family. He also discovers the security cameras have been turned off, deepening his suspicion that someone inside is involved.

Kevin tries to alert Mr. Prescott via the intercom, but the staff dismiss his tale as overblown. Undeterred, he tries to trap the intruders by flooding parts of the mansion to slow them down. His discovery that the cameras are off strengthens his belief that someone inside is helping the intruders.

Decorators begin re-trimming the Christmas tree to prepare for the royal visitors, signaling the upcoming event. The adults' confidence clashes with Kevin's suspicions, highlighting a growing rift over trust and safety. The festive setup contrasts with the undercurrents of danger.

Kevin spots Marv and Vera disguised as caterers and overhears their plan to kidnap the prince for ransom. He manages to trap Mr. Prescott in the freezer and witnesses the criminals fleeing out a second-story window. The plan shifts from a simple break-in to a bold kidnapping plot.

With the royal flight canceled, the party becomes a celebration of Peter and Natalie's engagement, complicating Kevin's mission to protect the truth. The adults try to maintain normalcy while Kevin's suspicions grow louder. The upcoming ceremony adds pressure to keep the danger hidden from the children.

Kevin inadvertently disrupts the celebration by colliding with guests and toppling an ice sculpture. The sculpture turns out to be the frozen Mr. Prescott, revealing the deception to the partygoers. Peter's anger deepens the family rift, while Natalie grapples with the harsh revelation.

Peter sends Kevin to his room, doubting his story, while Natalie warns that poor decisions could hurt everyone. Kevin remains determined to shield the truth and protect the prince, insisting on his right to speak up. The confrontation widens the emotional gap between the adults and Kevin.

Kevin uses a set of clever booby traps to outwit Marv and Vera as Molly’s involvement becomes clear: she is Marv's mother and the mastermind behind the scheme. Prescott admits resentment toward his job and reveals that Molly supplied the remotes to turn off the cameras. The truth surfaces through a tense, uneasy alliance.

Kevin escapes via the dumbwaiter while Marv and Vera pursue him through the house, stumbling through his traps. Molly escapes the elevator, and Prescott escapes via the shaft before calling the police. Kevin triggers a wall switch and launches the criminals onto a chandelier, rendering them unconscious.

Peter senses something wrong back at Natalie's mansion and hitches a ride back to check on Kevin after a tense phone call from Kate. Kate, Buzz, and Megan hurry toward the mansion, eager to ensure Kevin's safety and learn the truth. The family confronts the chaos together as the plot comes to light.

Prescott resigns from his post, admitting the mess that allowed the plot to unfold. Peter breaks up with Natalie and reconciles with Kate and the children, realizing his family comes first. The royals join the McCallisters for Christmas, but the holiday ends with a calmer, more grounded togetherness.