Chicago resident Chester “Chet” Ripley, his wife Connie, and their two sons Buck and Benny are on vacation at a lake resort in Pechoggin, Wisconsin. Then the unexpected happens — Connie’s sister Kate, Kate’s know-it-all investment broker husband Roman Craig, and Kate and Roman’s twin daughters Mara and Cara crash the vacation, having decided to blow off their own plans to vacation in Europe. Roman proceeds to majorly get on Chet’s nerves — so much that Chet is ready and willing to pack up and go home, even as teenager Buck tries to romance local girl Cammie.
It turns out that the reason why Roman, Kate, and the twins crashed the vacation is because the Craigs are broke because of a bad investment, and Roman was planning to hit Chet up for $25,000
Jack Chester, an overworked air traffic controller, takes his family on vacation to the beach. Things immediately start to go wrong for the Chesters, and steadily get worse. Jack ends up in a feud with a local yachtsman, and has to race him to regain his pride and family’s respect
Chester thinks he is going to get a promotion, and tells his fiancee. In a meeting with his boss he lies and says that he coached soccor before and his boss puts him as the coach of a ladies soccer team. There is only one problem, they suck. The only way to rectify the problem is to dress his fience’s son as a girl and put him on the team. The only problem is that he has a crush on the bosses daughter who is also on the team
Larry and Richard, best buddies, work for the company of Bernie Lomax and one fine summer day accidentally find out that someone in the company betrays it and steals money from it. Hoping for promotion the two guys immediately report about this to their boss. Little do they know that it’s the boss himself who steals from his own company. Pretending that he is proud of them Bernie invites Larry and Richard to spend the weekend at his splendid vacation house on the beach. Larry and Richard of course agree and while the two are looking forward to a weekend full of parties and girls, Bernie asks a mafia boss and a buddy of his to kill his two employers so that nobody gets to know what they found out. Instead it is Bernie who gets killed and when Larry and Richard finally arrive at their boss’s vacation house they find Bernie dead. Not knowing how to deal with the situation, the two friends have the effort to pretend that their boss is still alive, which brings them into comic situations. And then there’s still the killer who wants to shoot them, many party guests and of course the police