When the President's daughter has been kidnapped, the NTS is doing their best to retrieve her. After their contact with the hostages, DIS takes over all control under command by Son Hyuk who starts an operation named Silence Storm.

Code Orange is declared when they discovered a security breach at NTS. Agents Jung Woo and Jae Hoo are appointed to discover the mole. Dr. Kwon is forced to create an entire new plan to hide Dr. Kim Myung Guk once and for all.