Early on Thanksgiving morning, Chris and Reagan are preparing to head to the airport to catch a flight to Maryland. Reagan is satisfied with her decision to travel on Thanksgiving, but just as they're headed out the door, Reagan discovers that their flight has been cancelled. It looks like Chris and Reagan will be spending Thanksgiving in Los Angeles.
A consummate optimist, Reagan decides to give Chris an amazing Thanksgiving dinner, just like back home. The refrigerator is empty, so Reagan and Chris head to the grocery store for supplies. Chris is excited but nervous because Reagan has never prepared a Thanksgiving dinner before.
Meanwhile, Ava and Walt are celebrating Thanksgiving at the salon, getting pedicures and sipping mimosas. A conversation with the salon employees inspires Ava to give back for Thanksgiving, so she and Walt head off to find some Thanksgiving volunteer opportunities.
At the grocery store, Chris and Reagan have tracked down the last two remaining turkeys. One of them is extremely small, and the other is enormous. Pressured by other hungry shoppers, Chris grabs the 35-pound turkey, and they head home to make the best Thanksgiving dinner ever.
Ava and Walt arrive at a local church to volunteer, only to discover that the church already has too many volunteers. Not wanting to be outdone, they find a back door, sneak into the church and butt into the food line, causing a scene and spilling a vat of gravy on the floor.
Reagan and Chris arrive home from the grocery store and immediately run into Gene and Terry, who they were hoping to avoid. Luckily, Gene and Terry have already done Thanksgiving dinner, so the Brinkleys are off the hook. They carry the groceries inside to discover that Scott has invited some of his single dad friends over to do keg stands in the living room. It looks like Reagan will be cooking Thanksgiving dinner for seven now.
Chris and Reagan realize that they can't fit their enormous turkey into their oven, so they're forced to use Gene and Terry's industrial oven instead. Of course, they're also forced to invite the neighbors to their Thanksgiving festivities, and Gene and Terry gladly accept the half-hearted offer.
After being kicked out of the church, Ava and Walt head to Reagan's house. Gene and Terry are going overboard with the table decor; Scott is reminiscing about better times with his single dad friends, and Chris is sad about missing out on his family Thanksgiving in Maryland. Reagan suggests that a Thanksgiving football game is just what everyone needs to lift the holiday spirits.
Chris leads a squadron of Thanksgiving-goers to a local park for a rousing game of football. He quickly realizes that nobody knows how to play the game, and the outing is a disappointing disaster. No matter how hard he tries, Chris can't seem to make this Thanksgiving as good as an old-fashioned Brinkley Thanksgiving back in Maryland.
Ava and Walt decide to satiate their charity craving by helping out someone severely in need of assistance: Reagan. They each take posts in the kitchen to help Reagan with Thanksgiving dinner; but things quickly get out of hand, and the cooking turns into a disaster.
Chris and Reagan head back to Gene and Terry's oven to check on the turkey. Reagan is feeling bad about the failed Thanksgiving until she sees the beautiful bird. With their Thanksgiving excitement reinvigorated, Chris and Reagan struggle to carry the enormous turkey back to their house. They accidentally drop the turkey in the street while trying to carry it, and it's promptly run over by a car. Once again, Thanksgiving is ruined.
Scott suggests a last resort Thanksgiving idea, and the whole clan heads to Sneaky's Pizza for a Thanksgiving meal. It's not an ideal Thanksgiving, but it's as good as it's going to get. At the pizza place, Ava climbs into the crane game to get prizes for everyone. Chris dedicates this Thanksgiving to Reagan, who tried her best to make it an amazing holiday. One extra-large turkey sausage pizza later, everyone is happy and thankful.