Unless you're the Heffleys, a family road vacation is meant to be a lot of fun. The journey begins with high hopes, but gradually devolves into a series of incorrect decisions. Greg Heffley's notion of a good time includes gas station toilets, crazed seagulls, a fender bender, and an escaped pig. Even the worst road trip can turn into an experience, and the Heffleys will never forget this one.