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.

In his first journal, middle schooler Rowley Jefferson, Greg Heffley's sidekick, records his experiences and misguided decision to write a biography of Greg, who, in his own mind, is destined to become rich and famous.

"My whole life I planned on going to pilot school like the rest of my friends--then I got rejected! Along came a little green guy named Yoda who invited me to Jedi Academy. Now I'm at a school with aliens, robots, and lightsaber-wielding bullies who can lift things with their minds! How am I supposed to compete with that? As if starting middle school wasn't hard enough..." The story of Roan Novachez, Jedi Academy student, is told through comics, journal...

Rainbow Tinseltail (called Bo) has never actually seen a dragon, but when things start going missing from Sparklegrove School for Unicorns all clues seem to point to a dragon pup called Scorch--but when Scorch does not return to the dragon caves, Bo and her friends become worried that he has gotten lost in the forest and they set out to find their new friend.

Baron von Bubbles (Bub) is a pug who wants nothing more than to help his human Bella in her craft projects for school, though he is a little apprehensive about the rocket she is making for the Inventor Challenge--so when he ruins the rocket while trying to get at Nutz the squirrel he needs to find a way to make it up to Bella.

Bub the pug and his human, Bella, cannot wait to teach Nana's new pup, Harlow, some new tricks, but they soon realize training a puppy is not as easy as they thought.