Things are going swimmingly for new students Mera and Raven, until the girls go on a field trip to Mera’s hometown of Atlantis and find that the underwater city has vanished! Batgirl, Supergirl, Wonder Woman, Bumblebee, Raven, Miss Martian and Starfire discover that Atlantis has been shrunk and bottled by the powerful villain Brainiac!
This gigantic problem calls for a small solution. To infiltrate Brainiac’s bottled-city collection, Bumblebee and Raven combine technology with magic and shrink the heroes. But will they save the lost city of Atlantis, or will their little plan lead to even bigger trouble?