The Baker family, a cheerful and chaotic house full of life, decides to embark on a family vacation that promises to be unforgettable. After a year filled with challenges, Tom and Kate want to relax, but their idea of a getaway quickly turns into a comedic battle with the Murtaugh family, their neighbors they have never gotten along with. The Murtaughs, who seem to have everything the Bakers lack, are ready to spark conflict at every encounter, from boat races to barbecue competitions.
As tensions rise, the Bakers find themselves caught in a sea of antics and adventures, where each of the 12 siblings presents their own vision of the ideal vacation. From misunderstandings to hasty decisions, the family must learn to work together to overcome the obstacles posed by the Murtaughs while also facing their own individual issues. The movie shines with funny and heartfelt moments, as each member of the Baker family feels on the edge while trying to find their place.
Amidst laughter and a few mishaps, the trip becomes a lesson in unity, love, and, of course, the value of being a close-knit family. As the competition between the two families reaches its climax, it becomes clear that the true victory is not winning the game, but enjoying the journey together as a family, with all its craziness and more.