When Greg Heffley's dad threatens to send him to military school if he doesn't stay out of trouble, Greg finds all-new ways to land himself in the doghouse! For starters, Greg's in over his head when he pretends to work at the swanky country club where Rowley's family has a membership. Things don't go much better on a father-son camping trip with the Wilderness Explorers, and then there's the Heffley's new dog, Sweetie, who fetches even more trouble...

Cuca's cozy rural life in Brazil is shattered when his father leaves for the city. Determined to reunite his family, he embarks on a journey into civilization, where despite the harsh life and industrialized landscape, he finds that peoples' hearts continue to beat together in song.