A police station and a fire station adjoining each other cooperate in combating crime and fire in the most brutal and tragic cases.

Do Bae-man became military prosecutor only to make more money and be successful. On the other hand, Cha Woo-in, recently joining Bae-man’s team, became one for her revenge. As these two different purposes shows, the two have very different backgrounds and personalities. However, as they work on the same case, Bae-man and Woo-on help each other and even grow together as fine military prosecutors.

A painful but exciting story of Oh Soo-jae, a cold lawyer who has become empty while pursuing only success, and Gong Chan, a law school student who is not afraid of anything to protect her.

20 years of perseverance, hot-blooded teenagers finally become the people's hero.

Every last Thursday of the month at an all-girls high school, the students of Class 2–5 cast their votes in a popularity poll. The results classify them into Grades A, B, C, D, and F. If they fall into Grade F, they become legitimate victims of school violence.

Hiding a twisted past, a man maintains his facade as the perfect husband to his detective wife — until she begins investigating a series of murders.