Episodes are long (approx. 70–90 min) and titled by a central theme or object.

The show kicks off with a gut-punch of irony. Kim Je-hyuk (Park Hae-soo), a superstar baseball pitcher, is sentenced to prison for using excessive force while protecting his sister from a sexual assailant.

As the series approaches its end, the stakes rise. Je-hyeok begins training in earnest for his comeback, supported by the guards and his fellow inmates. However, the show refuses to romanticize prison. Darker elements—corruption, the threat of relapse for Looney, and the reality of life after release—begin to take center stage. These episodes are emotionally heavy, focusing on the legal battles for Captain Yoo’s innocence and the looming release dates for the beloved cellmates. The Finale: The Final Inning (Episodes 15–16)

The magic of Prison Playbook episodes lies in the "Shin-PD" touch. Similar to his work on the Reply series and Hospital Playlist, the director focuses on small, mundane moments that build deep emotional bonds. Fans return to specific episodes for: The chemistry between Looney and Captain Yoo. The heartwarming bromance between Je-hyeok and Joon-ho.