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.

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.

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.

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.

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.

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.

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

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.

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.

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.