The Crisis Negotiation team continues to hunt for Jung Soo Kyung, while K Group CEO Seo Gun Il sends his men too to find him and kill him off. Yeo Myung Ha receives a letter that could jeopardize the entire plan of Pied Piper.

While the exchange didn't go as they planned, the hunt for Pied Piper intensifies once they use an unorthodox method to find a new lead.

While Yoon Hee Sung has been arrested, Yeo Myung Ha and Joo Sung Chan are investigating his last four hours as they don't believe it was his final plan to blow up Seo Goon II.