After Eui Sung gets into a dangerous situation, the team executes a rescue plan to save him. When everything seems to go according to the plan, the whole team finds themselves in an unexpected situation. Will Tae Joon be able to successfully complete the operation and save Eui Sung? 

The team is informed by Hong Se Young, the only survivor of the secret laboratory, about the fact that Cho Jun Hyung and his boys are planning a virus terror attack at Kim Nam Young's Book Publishing Event. However, even under the risky situation, Tae Joon and his team decide to counterplot it by sneaking into the event. When they thought they got in successfully, the disabled alarm starts ringing, forcing Su Kyung into a corner.