Family comedy based on the fourth book in the 'Wimpy Kid' series by author and cartoonist Jeff Kinney. Greg (Zachary Gordon) is having his worst summer ever. A self-confessed 'indoor person', all he wants to do is spend his holidays playing computer games in his room with the curtains drawn. But his mother has other ideas, and packs him off with his best friend, Rowley (Robert Capron), to stay at a country club, where - to Greg's horror - outdoor activites and family bonding are the order of the day.