Back in middle school after summer vacation, Greg Heffley and his older brother Rodrick must deal with their parents' misguided attempts to have them bond.

When Greg Heffley's dad (Steve Zahn) 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...