Young Min finds out from the ghost patient that the accident he was involved in was also planned out by someone. Meanwhile, Seung Jo begs Seung Tak to do whatever…

Harnessing the power of his unique brain and the knowledge of those he synced with, Sewon risks his life to save his family. Season finale.

Sewon confronts the mastermind pulling the strings behind his ordeal and setting in motion the diabolical plan involving him and his family.

Heejin, the daughter of a man connected to Jaeyi, sheds new light on Sewon’s home life and shares more details about what happened to Doyoon.

Sewon’s investigation makes him a target, and he discovers a disturbing truth about the private investigator that rocks both their worlds.

Intel from a private investigator drives Sewon to conduct more brain syncs, leading him to believe his wife, Jaeyi, was right about their son Doyoon

Sewon, a research-obsessed brain scientist, gets devastating news that pushes him to advance a risky brain-sync system in search of answers.

With an emergency patient in front of him, Seung Tak struggles. At the same time, Young Min faces the risk of disappearing for good. The two become physically and mentally…

For Ung and Yeon-su, a new beginning is equal parts sweet and clumsy. When NJ bumps into Ji-ung, she invites him out for a drink.