Diary of a Wimpy Kid: The Long Haul is a 2017 American family road comedy film based on the book of the same name by Jeff Kinney. It is the fourth installment in the Diary of a Wimpy Kid film series and a sequel to 2012's Diary of a Wimpy Kid: Dog Days. Despite not being a reboot, the original cast and crew members from the first three films will not be reprising their roles, making this the first film to feature an entirely new cast. The film takes place one year after the events of Dog Days. Greg Heffley and his brother Rodrick convince their family to go on a road trip for their grandmother's 90th birthday, but they actually intend on attending a video game convention.