Suit up for this high-octane graphic novel debut by Caldecott Medalist Dan Santat! Captain Amazing, the hometown hero of Metro City, is so busy catching criminals that he rarely has time for his pets -- he hasn't even noticed they've been developing superpowers of their own! So when Captain Amazing announces he needs a sidekick, his eager pets -- a dog, a hamster, and a chameleon -- all decide to audition for the part and a chance for one-on-one time with the Captain. But while each pet is focused on winning the coveted sidekick spot, an even bigger battle in Metro City is about to unleash... Dr. Havoc, Captain Amazing's long-time nemesis, is hatching up a new scheme, and the Captain's found himself in serious trouble. Can the warring pets put their squabbles aside to save the day? Will the return of a forgotten friend help them in their time of need? Or will this be the end for Captain Amazing? Get ready for sibling rivalry royale as pets with superpowers duke it out for the one thing they all want most: a super family.