Holden tries to adapt to his normal life while bonding with Willa, but he still feels that danger is looming.
Willa arrives unannounced at Matthew's house and struggles to persuade Arthur to give up the Realm.
Suffering from shocking nightmares, Holden finds it difficult to control his powers at work.
Luke doesn't understand why Holden can't fully use his powers, and Willa becomes frustrated when Arthur disappears.
Luke finds out that Holden is sleepwalking and helps him to discover a new lead about what is going on in the Realm.
Holden seeks help from Charlie to figure out what is going on with him and the Realm, but she is hesitant to explain why she has returned to Fort Reed.
Jeff and Holden discover facts about Edgar, and Willa goes to get help from Luke. Diane and Tom are having a hard time working with Agent Borden.
Holden, Jeff and Charlie do the impossible to save Edgar from the grip of the doctors of Hollow Sky.
Holden attempts to fix things as he faces a great danger from the Realm, and he gets help from a surprising ally.
Agent Borden advances her plan to get rid of Hollow Sky, while Luke and Willa take extreme action.