Gina's class embark on their midterm in the Hades Cradle, an ancient industrial fortress located in Atlas's armpit. While Gina monitors remotely, her beau Nez arrives with Portia, the shrunken Ooshoosh giantess who's competing with Gina for Nez's affection. And while Gina's distracted with that matter, her students set off a mini-apocalypse!