<P> In the film's opening in the Feder household, Lenny wakes up to find a wild deer standing next to his bed . Lenny tries to get his wife Roxanne to open the window . She wakes up in anger and startles the deer, causing it to urinate all over the bed and on Lenny . The deer runs down the hall and crashes into the bathroom where it runs into Lenny's eldest son Greg showering scaring him and making the deer urinate on him . It turns out that Lenny's younger daughter, Becky, left the door open overnight for any animals that wanted to come in . Lenny is able to get the deer out of the house by using Becky's monkey doll, which rips it apart, devastating her . Greg, Keith, and Becky then go to their last day of school . Roxanne brings up the idea of their family having another baby, but Lenny says their family is perfect as is, upsetting Roxanne . </P> <P> At the Lamonsoff household, Eric Lamonsoff and his wife Sally are at odds with each other over how to raise their children - Sally believes in unwavering support while Eric prefers to be more practical with them, as proven for their son's bad math skills and daughter's rambuncious sense in fashion . At the McKenzie household, Kurt surprises his wife Deanne with a thoughtful anniversary present, only to find that she has completely forgotten . Meanwhile, Marcus Higgins is waiting at a train station after receiving a letter from an old girlfriend, who tells him that he has a seventeen - year - old son Braden . Marcus is stunned to see a tattooed, six - foot - tall boy, who turns out to be Braden . Marcus tries to be nice and takes him to school, but Braden shows an immediate dislike toward him, believing that he abandoned him and his mother . </P> <P> After dropping off their kids, Lenny, Eric, Kurt, and Marcus spend the day roaming around town, reminiscing about the amazing summers they used to have when they were kids and Lenny's childhood bully, Tommy Cavanaugh . Lenny argues that he could take Tommy as a kid and he can still take him . Eventually, the friends go to see Becky's ballet recital, where Lenny runs into Tommy, whom Lenny is visibly terrified of . Tommy threatens that if Lenny ever lies again about being able to beat him up, he'll publicly beat Lenny up . </P> <P> Once the kids are out of school, Lenny, Eric, Kurt, and Marcus decide to visit the old quarry, where they used to swim as kids . However, they run into a gang of partying frat boys who force them to jump into the quarry lake naked . Braden, who was partying with the frat boys, witnesses this and goes off to vandalize their frat house . When the frat boys return, they swear to take revenge . </P>

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