Thomas is acting strangely, like an aloof moron without common sense at all. He doesn't take care of his hair or his clothes, he has no filter on what he's ready to say about his private stuff, he loses attention of what the others tell him, and even he has lost his fear of death and survival instinct and reflexes. Logan notices this and calls Roman and Patton for help. Soon they all realize that he has no anxiety at all, and when they call him, Anxiety doesn't show up. So they decide to sink down, all of them, Thomas included, into Anxiety's room, the corner of Thomas' mind where Anxiety resides, to find out what happened to him.