New inmates, including one with particularly troubling behavior, get assigned to Joon-ho's wing. Min-chul seeks to find out what's worrying Dr. Ko.

Captain Yoo's chance at a retrial depends completely on a witness's willingness to testify. One inmate from Je-hyeok's cell prepares to say goodbye.

Led by Min-chul, Je-hyeok's cellmates are on a mission to protect Je-hyeok from the newest inmate, who's plotting to take revenge.

While deciding which team he'll play for, Je-hyeok sets a condition that is very unlike him. Meanwhile, Crony continues his plan for payback.

Je-hyeok needs to talk to Ji-ho while he has phone privileges, but time is running out. Je-hyeok's cellmates share surprising details of their pasts.

Things finally seem to be looking up for Je-hyeok until another calamity strikes. Meanwhile, Looney and Jung-woo continue to bicker like preschoolers.

Someone is plotting to make Je-hyeok's remaining months in prison as unpleasant as possible. Min-chul anxiously awaits the decision on his parole.

Even for a man as patient and steadfast as Je-hyeok, sometimes life in prison just gets to be too much, which leads him to come to a drastic decision.