School is back in session for our favorite teen heroes from another planet. Only this time, they've got some sinister company when a giant, chameleon-like space creature poses as the new kids in class. Then, as winter sets in on Sherman High, homesickness sets in for Ilana as she longs to return to Galaluna. And after Titan receives a distress call from Solomon, the only course of action is to blast out into space to help.