The Heffley family road trip starts off full of promise, then quickly takes several wrong turns--with everything from a fender bender to crazed seagulls--but even the worst road trip can turn into an adventure, and this is one the Heffleys will not soon forget.

Greg Heffley tells about his summer vacation and his attempts to steer clear of trouble when he returns to middle school and tries to keep his older brother Rodrick from telling everyone about Greg's most humiliating experience of the summer.

While trying to find a new best friend after feuding with Rowley, middle-school slacker Greg Heffley is warned by older family members that adolescence is a time to act more responsibly and to think seriously about his future.

Greg Heffley recounts his daily experiences during summer vacation as he tries to live out his ultimate fantasy of spending the days indoors playing video games with no responsibilities and no rules, despite his mother's attempts to pack the summer with outdoor activities and family fun.

Middle-schooler Greg Heffley nimbly sidesteps his father's attempts to change Greg's wimpy ways until his father threatens to send him to military school.

The pressure's really piling up on Greg Heffley. His mom thinks video games are turning his brain to mush, so she wants her son to put down the controller and explore his creative side. As if that s not scary enough, Halloween's just around the corner and the frights are coming at Greg from every angle. When Greg discovers a bag of gummy worms, it sparks an idea. Can he get his mom off his back by making a movie . . . and will he become rich and famous...

When Professor Pippy P. Poopypants comes to Jerome Horwitz Elementary School to teach science, and he goes off the deep end because students make fun of his name, only Captain Underpants can save the school from the professor's perilous plot.

When Miss Know-It-All's inbox overflows with pleas for guidance, Nikki Maxwell, the school newspaper advice columnist, turns to her best friends for help.

Principal Krupp once again turns into the superhero Captain Underpants in order to save the world, and Jerome Horwitz Elementary School, from the evil talking toilets and the Turbo Toilet 2000.