Jung Woo is a prosecutor who lives an exciting life, fighting homicide crimes hands on; on his daughter's sixth birthday, he happens to deny a job offer that gets him locked up behind bars for reasons he can't seem to recall.

In a hunt for answers, Jung-woo gets creative with the investigation on Min-ho and deals with a new reality, as well as an ally from his past.

Jung-woo has a break in the case; Min-ho makes a bold sacrifice; Seo Eun-hye goes to work; Jung-woo stages a rebellion.

A prison reunion alters Park Jeong-u's need for the truth; Seo Eun-hye questions Kang Jun-hyeok's intentions; Cha Min-ho must face and surmount with his fears.

Joon-hyuk visits Ji-soo on Ha-yeon's birthday to deliver a present; the present serves as enough evidence to get him off the case and incriminate himself for the crime.

Yun Tae-su's revelation redefines the case; Park Jeong-u struggles to unpack memories; Seo Eun-hye presents a piece of evidence.