The prosecutor's office and the police find themselves on opposing sides. The prosecutors, including elite prosecutor Woo Tae Ha, want discretionary power over investigations. Meanwhile, the police, including Choi Bit, try to get the complete investigative authority that is independent of the prosecutor's office. In this tense situation, Prosecutor Hwang Shi Mok and Detective Han Yeo Jin chase after the truth in a hidden case. (Source: AsianWiki)