National Lampoon’s Christmas Vacation 3 The Grandchild Grievance 2026
Starring Chevy Chase, Beverly D Angelo, Ed Helms, Christina Applegate, and Randy Quaid
The holiday lights are blindingly bright, the turkey is bone-dry, and Clark Griswold has officially entered the most chaotic phase of his life: grandfatherhood. In National Lampoon’s Christmas Vacation 3 The Grandchild Grievance, the legendary Clark Griswold played by Chevy Chase returns to the screen for one final attempt to host the ultimate multi-generational holiday celebration at his classic suburban estate, which has now been upgraded with a temperamental smart-home system.
Chevy Chase delivers a performance filled with his signature blend of bumbling optimism and explosive frustration. Now in his golden years but no wiser, Clark finds himself in a high-stakes battle against a sentient AI home assistant that keeps locking him out of his own garage and refuses to power his record-breaking 50,000 LED light display. By his side, Ellen played by Beverly D Angelo remains the saintly voice of reason. She navigates the growing insanity with a glass of eggnog permanently in hand, displaying the kind of grace that can only be forged by forty years of surviving Griswold family disasters.
The real conflict, however, stems from the next generation. Rusty, played by Ed Helms, and Audrey, played by Christina Applegate, arrive with their own dysfunctional families in tow. Their homecoming quickly devolves into a fierce clash of parenting philosophies and a competitive outdoor decorating war that threatens to crash the entire Tri-State power grid. Just as Clark reaches his breaking point, a familiar sight appears at the end of the driveway: a rusted, dilapidated RV. Cousin Eddie, portrayed by the incomparable Randy Quaid, has returned. This time, he has brought along a surprise exotic pet that makes the infamous squirrel from 1989 look like a harmless house cat.
Packed with classic slapstick mishaps, agonizingly awkward family dinners, and surprisingly heartfelt moments, Christmas Vacation 3 is a riotous celebration of the stress that defines the modern holiday season. In the world of the Griswolds, the golden rule remains the same: if something can go wrong, it will go wrong—usually involving a massive explosion, a neighborhood-wide blackout, and an unexpected visit from the SWAT team.
Would you like me to generate a promotional movie poster image for this fictional sequel?