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Baseball pitcher Kim Je-hyeok gets slapped with a completely unexpected prison sentence only days before his flight to Boston to join the Red Sox.

Je-hyeok's appeal is a week away, and everyone seems sure he'll win the case. Seagull demands that the Errand Boy sneak him a knife.

After he's transferred to a new facility, Je-hyeok shares a cell with an interesting group of inmates and begins working at a prison woodshop.

With a big prize at stake for the winner of a singing contest, the inmates get busy practicing. Je-hyeok needs permission to get outside medical care.

After the big announcement that broke the hearts of many, Je-hyeok starts showing interest in other career paths. Jean Valjean is soon to be released.

The arrival of the new inmate has everyone on edge. Various competitions are being held with boxes of ramen – and something else – up for grabs.

No one seems to know what kind of person Captain Yoo really is. Meanwhile at the woodshop, there's growing discontent toward the new chief.

Dr. Ko needs a medical exam for his abdominal pain, but with the upcoming audit, Captain Na is pickier than ever in giving out authorizations.

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.