Moo Ja comes to visit Mr. Jang and ask a few questions about the device Soo Yun is wearing. In the meantime, Mr. Gong of Passenger Services gets involved in a scandal that he is abusing his power and forces subcontractors to have a drink with him after work. To make things worse, Mr. Gong's daughter happens to visit his office on the day Mr. Gong is questioned by the Internal Affairs Team.

Mr. Jang suggests that Soo Yun get a thorough medical check-up because his inflammation level came out too high, but Soo Yun refuses, saying that he is perfectly fine now. Meanwhile, Soo Yun happens to see In Woo having a talk with Director Jo who made Soo Yun severely injured in the past. Soo Yun gets disappointed that In Woo is still associating with Director Jo.

Incheon International Airport is put on emergency alert as it gets surrounded by heavy fog. Flights from and to the airport are delayed or canceled, and passengers are stuck in the airport. In the meantime, Yeo Reum finds out that Soo Yun is in critical condition and he's just pretending to be fine.