After burying Adam's body in the desert, the teens begin to focus on how they can destroy the collective consiousness, which has taken over Max's body by trapping his mind inside of the collective. Isabel invites Trevor to come stay at her house and the teens decide to keep Max's condition a secret from his adoptive parents. In order to prevent any questions, Trevor uses his powers of molecular manipulation to disguise himself as Max. He finds the human experience fascinating and enjoys the oddities of the human body.
Liz stays by Max's bedside day and night hoping that he will wake up. When he finally does, however, he isn't really Max. He is being controlled by the collective consiousness, which is trying to get the Stones of Midnight back. The teens realize that they must split into two groups--a group that pretends to help 'Max' find the stones and a group that works to find a way to boost the stones' powers in order to shatter the collective concsiousness.
As the teens struggle to find a way to boost the stones' powers, Trevor invites Michael and Isabel to return with him to their home planet once they have accomplished their goal. He says that society will need to be rebuilt after the destruction of the collective and he wants Michael and Isabel to be a part of it. Michael is excited to go 'home' and be with his real family. Isabel isn't quite sure what she wants--but the idea of being with Trevor is exciting.
With a little help from Project Clean Slate's technology, the teens find a way to open a wormhole to the home planet and release a device that will shatter the collective consiousness. They are all worried for Max's life, as they fear they won't be able to shatter the collective without killing Max. All of the teens--humans and aliens alike--connect and lend their energies to the effort, each person sharing deep memories to boost the power of the wormhole and to try and save Max. After a few close calls, Max is freed and the collective is destroyed. With the wormhole open, Trevor must return to the home planet. Isabel stays behind and, at the last moment, Michael decides to stay on Earth because he realizes that Maria is his home. Isabel and Michael hope to one day visit Trevor, but for now, everyone is just happy to be alive and safe on their real home planet, Earth.