The Caldwells take a family trip to Puerto Rico where their father is also securing a secret business deal, while the kids find their own paths. Eight years have passed since the events of Au Pair, and newly graduated as his high school's valedictorian, Alexander Caldwell joins his visiting sister, college freshman Katie and her roommate Ariana on a family summer vacation with father Oliver and stepmother Jenny. Oliver and Jenny's current nanny declines to join them and the over-worked parents/executives must take care of their newborn baby Sarah in Puerto Rico. Amidst corporate scheming by the young company CFO Walter Hausen, who is planning a takeover of Oliver's company CCI Tekhausen (formed in Au Pair II), Oliver and Jenny must contend with bridging the generation gap with the family, new career motivations and the romances of their 'newly reformed' prankster kids.
Ben Cooper and his family struggling to get a grip on household chores, school and work. Ben is the family caretaker. So when Ben sees that a Smart House is being given away, he enters the competition as often as he can. The family wins the house (named Pat). After moving in Pat's personality begins to radically change, the family starts to resent her.
Andy "Brink" Brinker and his in-line skating crew--Peter, Jordy, and Gabriella--who call themselves "Soul-Skaters" (which means they skate for the fun of it, and not for the money), clash with a group of sponsored skaters, Team X-Bladz--led by Val--with whom they attend high school in southern California. When Brink discovers his family is in financial trouble, he goes against the wishes of his parents and his friends and joins Team X-Bladz. Brink tries to lead a double life but will be able to pull it off?
스팽키는 '여자를 싫어하는 남자들의 클럽'의 리더격이다. 그는 아이들을 소집하여 곧 있을 마을 자동차 대회에 출전할 선수를 뽑지만, 그 시간 선수로 뽑힌 알팔파는 클럽의 규칙을 무시하고 여자 친구인 다알라에게 사랑을 고백하고 있다. 이 사실을 안 회원들은 두 사람의 소풍을 엉망으로 만들어 놓고 그 와중에 그들의 아지트가 불타고 만다. 아이들이 불탄 아지트를 다시 짓기 위해 모금을 하는 동안 자동차를 지키기로 돼있던 알팔파는 마을 노래자랑에서 다알라에 대한 사랑을 고백 하느라 정신이 없고, 그 사이 경주에 출전할 자동차마저 도둑을 맞는다. 허탈해진 아이들은 맨손에서 다시 시작하기로 하고 고물들을 주워와 자동차를 새로 만드는데...
