Years after Kevin McCallister became a Christmas legend, a new chapter takes shape. Young Max Parker — clever, energetic, and wildly imaginative — is accidentally left behind during the holidays after a family mix-up sends everyone rushing to the airport. But this time, being home alone is only the beginning.
On Christmas Eve, as Max explores the quiet house, a whistle echoes through the snowy night. A brilliant light flashes outside. And a massive steam engine — The Polar Express — stops right in front of his home. Drawn by curiosity and the promise of adventure, Max climbs aboard and discovers that the train isn’t just magical… it’s in trouble.
A glitch in the Polar Express’ ancient Christmas engine threatens to derail the North Pole’s biggest night. Even worse, two familiar bumbling thieves — Marv and a new partner-in-crime Eddie — sneak aboard, planning to steal the magical “North Star Conductor Key,” which powers Christmas Eve itself.
As the train rockets through frozen lakes, snowy mountains, and shimmering auroras, Max must use his signature creativity and a whole new set of hilarious improvised traps to stop the thieves, save the train, and ensure Christmas arrives on time. Along the way, he meets a mysterious passenger — an older man with a warm smile and a familiar twinkle in his eyes: Kevin McCallister, now a legendary security expert who knows a thing or two about holiday chaos.
Together, Max and Kevin uncover the truth about belief, bravery, and the magic that connects every Christmas heart.
Filled with laughter, warmth, breathtaking winter visuals, and nostalgic callbacks, Home Alone 4: The Polar Express (2025) brings two beloved holiday worlds together for an unforgettable adventure.
