While on the Justice League's orbiting Watchtower, an alert of dual emergencies in Gotham City calls Batgirl and Supergirl into action. They step into the teleporter. In the same moment, something attacks and damages the Watchtower's tech.
The bestselling books are now a DreamWorks/Netflix animated TV series! This handbook is the complete guide to the antics of George, Harold, and Captain Underpants TV adventures.
