"Turbo and the Superpet Superhero League think they can lay low for a little while since they defeated Whiskerface and his rat pack--but they're wrong! When something goes flying across Classroom C while Turbo is jogging on his wheel, he speeds up that jog and springs into action. Because it's not just something flying across the room. It's a flying ninja squirrel. The Superpet Superhero League must figure out what's going on!"--Provided by publisher.