Super Hero High is buzzing with excitement over new student, Supergirl. But when Supergirl crash lands into the cafeteria, it's evident that though she has incredible power, she has a long way to go before she becomes a Super Hero. Too intimidated by the other supers to ask them for assistance, Supergirl turns to helpful I.T. girl, Barbara Gordon. Barbara takes Supergirl under her wing and introduces her to the sweet, old librarian, Granny Goodness. As Barbara helps Supergirl learn to harness her powers, Wonder Woman joins them and becomes a mentor and friend to Supergirl. Meanwhile, the Junior Detective Club (The Flash, Bumblebee and Hawkgirl) investigates a mysterious rash of security breaches centered around the teleportation "Boom Tubes." Could it all be because of reformed Super-Villain and Super Hero High Vice-Principal Gorilla Grodd - or something far worse?