Diary of a Wimpy Kid: Dog Days (sometimes known as Diary of a Wimpy Kid 3: Dog Days) is a 2012 American comedy film directed by David Bowers from a screenplay by Wallace Wolodarsky and Maya Forbes. It tells the story of Greg Heffley who wants to relax and have fun during his summer vacation. Unwillingly, he gets dragged for an ill-fated camping trip.