Charlie Simms is a student at a private preparatory school who comes from a poor family. To earn the money for his flight home to Gresham, Oregon for Christmas, Charlie takes a job over Thanksgiving looking after retired U.S. Army officer Lieutenant Colonel Frank Slade, a cantankerous middle-aged man who lives with his niece and her family.
After losing her job, making out with her soon-to-be former boss, and finding out that her daughter plans to spend Thanksgiving with her boyfriend, Claudia Larson faces spending the holiday with her unhinged family.
An irritable marketing executive, Neal Page, is heading home to Chicago for Thanksgiving when a number of delays force him to travel with a well meaning but overbearing shower curtain ring salesman, Del Griffith.
When three hilarious, strong-willed women join forces to seek the ultimate revenge on their cheating ex at his upcoming holiday retreat, love struck event planner Livvy meets Carter, the property manager organizing it all, leaving Livvy to question if she can leave off their revenge scheme long enough to finally forgive her ex and let a real holiday romance blossom.
Siblings Wednesday and Pugsley Addams will stop at nothing to get rid of Pubert, the new baby boy adored by parents Gomez and Morticia. Things go from bad to worse when the new "black widow" nanny, Debbie Jellinsky, launches her plan to add Fester to her collection of dead husbands.
Between two Thanksgivings, Hannah's husband falls in love with her sister Lee, while her hypochondriac ex-husband rekindles his relationship with her sister Holly.
Quirky and rebellious April Burns lives with her boyfriend in a low-rent New York City apartment miles away from her emotionally distant family. But when she discovers that her mother has a fatal form of breast cancer, she invites the clan to her place for Thanksgiving. While her father struggles to drive her family into the city, April - an inexperienced cook - runs into kitchen trouble and must ask a neighbor for help.
A gold prospector in Alaska struggles to survive the elements and win the heart of a dance hall girl.
Kris Kringle, seemingly the embodiment of Santa Claus, is asked to portray the jolly old fellow at Macy's following his performance in the Thanksgiving Day parade. His portrayal is so complete that many begin to question if he truly is Santa Claus, while others question his sanity.
For decades, next-door neighbors and former friends John and Max have feuded, trading insults and wicked pranks. When an attractive widow moves in nearby, their bad blood erupts into a high-stakes rivalry full of naughty jokes and adolescent hijinks.
All Mitch Snider wants for his family is a traditional holiday feast with the relatives. The problem is that he doesn't have any. That is until he gets an invitation in the mail from his long-lost cousin Woodrow. What follows is a full-course meal of nonstop laughs when the neurotic suburbanites clash with the hippy hicks from hell in National Lampoon's most outrageous family misadventure yet.