Prosecutor Jang and the players work together to find concrete evidence of alleged illegal campaign funds for the presidential candidate, Kim Seong Joon. As soon as they get a step closer to the truth, key witnesses start to die. Later, the players find out that a former prosecutor turned lowly lawyer was the target and change their strategy. Meanwhile, Prosecutor Jang fights off those opposing his cause internally and finds the authority to continue in his investigation. (Source: Viu)