Will is forced to overcome his fear of Wargals, the foot soldiers of rebel warlord Morgarath, as Araluen's army prepares to battle Morgarath's forces.

After Jason succeeds in finding a way back to Lyrian, he's immediately in more danger than ever. Meanwhile, Rachel and the others have made their own progress--as well as discovered new enemies. As the group ultimately rejoins, they strive to convince their most needed ally to join the war and form a rebellion strong enough to triumph against the emperor.

Will is forced to overcome his fear of Wargals, the foot soldiers of rebel warlord Morgarath, as Araluen's army prepares to battle Morgarath's forces.

When George and Harold hypnotize their principal into thinking that he is the superhero Captain Underpants, he leads them to the lair of the nefarious Dr. Diaper, where they must defeat his evil robot henchmen.

Find out what happens to Max when he crash lands on top of a Mighty Meat Monster pizza after taking a late-night tumble through the vents at South Ridge Middle School.

Hal, who does not fit into Skandian society, ends up in a brotherband, a group of boys learning the skills that they need to become warriors, with other outcasts, and they compete with other brotherbands in a series of challenges.

Conor, Abeke, Meilin, and Rollan race to stop an ancient enemy with the power to strip spirit animals from their partners, while one young hero faces the loss of a spirit companion.

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.

Only Captain Underpants can stop the three evil space aliens who have invaded Jerome Horwitz Elementary School and turned everyone into lunchroom zombie nerds.

"The four Princes Charming, now known anonymously as the League of Princes, have to once again save the kingdom from magical gemstones, bladejaw eels, the Gray Phantom and two warlords bent on world domination.