But things take an unexpected turn, and they find themselves stranded at a campsite that''s not exactly a summertime paradise. When the skies open up and the water starts to rise, the Heffleys wonder if they can save their vacation - or if they''re already in too deep.
Big changes are in store for Greg Heffley and his family. They are making home improvements! But with unwelcome critters, toxic mould and the walls coming down, soon Greg discovers renovations aren't all they're cracked up to be. When the dust finally settles, will the Heffleys be able to stay... or will they need to get out of town?