The Dabhade family's wedding brings together laughter, chaos, and emotional moments as old conflicts resurface. Despite the tension, the family is reminded of the unbreakable bonds of love, loyalty, and shared history that define them.
Lincoln and the Louds are ecstatic to welcome their new Gran-Gran, Myrtle, into the family with a tropical wedding celebration; but the festivities are cut short when an old nemesis from Myrtle's secret agent past appears on the island.
Peter is thrilled that his Grandpa is coming to live with his family. That is, until Grandpa moves into Peter's room, forcing him upstairs into the creepy attic. And though he loves his Grandpa, he wants his room back - so he has no choice but to declare war.
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.
Puppy mayhem turns the lives of newlywed Chihuahua parents Papi and Chloe upside down when their rambunctious, mischievous puppies present one challenge after another. But when their human owners end up in trouble, the tiny pups will stop at nothing to save them - because in good times and hard times, the family always sticks together. So Papi, Chloe and the puppies embark on a heroic adventure, proving once again that big heroes come in small packages.