The President has ordered Eun Gi Hoon's arrest. But when he turns up dead, the President orders Sa Woo and Baek San's arrests. Meanwhile, HyunJun, Sun Hwa, and Chul Young try to locate the nuclear bomb before it goes off at 5pm.

Information has leaked out at NSS about the whereabouts of Baek San and Sa Woo. Yang Mi Jung has turned up dead. IRIS is planning an attack on the South Korean President. And Sun Hwa believes the Seung Hee may be an IRIS target as well.