Kaylee Davis is the niece to Marcus Higgens and ends up tagging along with her parents to Coach Buzzer's funeral. There she meets Lenny 'Hollywood' Feder and his family and the rest of the Grown Ups gang. Soon her family is invited down to the old lake house for the weekend and instantly becomes friends with Lenny's son, Greg Feder. Will it be just friendship? Or will be something more?