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.

It's vacation time for outdoorsy Chicago man Chet Ripley, along with his wife, Connie, and their two kids, Buck and Ben. But a serene weekend of fishing at a Wisconsin lakeside cabin gets crashed by Connie's obnoxious brother-in-law, Roman Craig, his wife, Kate, and the couple's two daughters. As the excursion wears on, the Ripleys find themselves at odds with the stuffy Craig family.