Yoon Jin has a tough few days trying to juggle work and her sick twins. With her mother-in-law and husband to consider on top of it all, she passes out from exhaustion and wakes up in the emergency room. Sun Woong and the others go home after her family arrives, but the next morning, Yoon Jin is nowhere to be found.

Branch Chief Kim In Ju is on the brink of his big promotion to Chief Prosecutor when he comes across the biggest crisis of his career. Meanwhile, Myung Ju and Sun Woong continue to bicker over everything, including a fraud case that involves a local assemblyman and his son. Many people in positions of power try to hinder the investigation.