National Lampoon’s Christmas Vacation 3: Holiday Heritage (2026) marks a nostalgic and chaotic return for one of the most beloved holiday comedy franchises of all time. The film brings the Griswold family back together for one final Christmas disaster, blending classic slapstick humor with modern-day tech satire.

Chevy Chase reprises his iconic role as Clark Griswold, now a grandfather who refuses to let tradition fade away. His boundless optimism and stubborn dedication to the perfect Christmas remain unchanged, even as he steps into the digital age. Clark’s decision to install an AI-controlled smart home light display sets the stage for a series of escalating holiday catastrophes.

Beverly D’Angelo returns as Ellen Griswold, once again serving as the emotional backbone of the family. Her calm patience contrasts perfectly with Clark’s manic energy, grounding the chaos as the festivities spiral out of control. The dynamic between them feels familiar, warm, and true to the spirit of the original films.

Rusty and Audrey, played by Johnny Galecki and Juliette Lewis, return as adults with families of their own, adding new layers of dysfunction to the already crowded celebration. The generational clash between analog traditions and screen-obsessed modern life creates many of the film’s funniest and most relatable moments.