Ice Age, but are spied on by their fathers, which ultimately results in them getting into an altercation and humiliating their children. Upon returning to the Bakers’ cabin, Sarah is furious and refuses to compete for Tom in the Cup. The other children are also angry with him, not only for spying on Sarah, but also for ruining the entire trip because of his competitiveness with the Murtaughs. Kate laments that his and Jimmy’s conflicting parenting styles have torn the two families even further apart. The next morning, Tom goes to the Cup to compete with Kyle and Nigel, the only two still willing to go. However, after discovering an old "Team Baker" flag, Kate and the rest of the kids show up, forgiving Tom and willing to compete again. After the events, however, the Bakers and the Murtaughs are tied for first; a tiebreaking canoe race is announced, in which every family member must compete. During the canoe race, Nora goes into labor; the Murtaughs want to help, but Jimmy, sensing the opportunity to defeat Tom once and for all, refuses to do so. The Murtaugh children jump out of the canoe to help the Bakers. While arguing with Sarina, Jimmy reveals that he was jealous of Tom being the popular one when they were younger. Eventually, Sarina convinces him to help and the two families work together to get Nora to the hospital. Bud, Lorraine, and Kate go with Nora in the delivery room, while Tom, Jimmy, Sarina, and the rest of the kids stay in the waiting room. While talking with Jimmy, Tom realizes that he has to let his kids grow, but wherever they go, they will always be together as a family. Nora then gives birth to a baby boy whom she and Bud name after his grandfather, who has shown them that "there is no way to be a perfect parent, but a million ways to be a really good one." Bud announces that he and Nora have bought the cabin back at the lake. Nora, Bud, and baby Tom leave for Houston a few days later, and the family enjoy the rest of their vacation. Cast Bakers Steve Martin as Tom Baker, the patriarch of the Baker family and former football coach. Bonnie Hunt as Kate Baker, the matriarch of the Baker family and Tom's wife. Piper Perabo as Nora Baker-McNulty, Tom &