Seasons & episodes

Moo Ja comes to visit Mr. Jang and ask a few questions about the device Soo Yeon 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 Yeon get a thorough medical check-up because his inflammation level came out too high, but Soo Yeon refuses, saying that he is perfectly fine now. Meanwhile, Soo Yeon happens to see In Woo having a talk with Director Jo who made Soo Yeon severely injured in the past. Soo Yeon 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 Yeon is in serious condition and he's just pretending to be fine.

Because of the heavy fog, all the passengers are stranded at the airport. All the staff at the airport is busy taking care of the delayed passengers. Meanwhile, Soo Yeon shows his resentment towards Mr. Jang for telling Yeo Reum about his condition. When Soo Yeon spends time alone in a park, Director Jo and his subordinates approach Soo Yeon.

Soo Yeon fights against Director Jo and his subordinates. Director Jo gets shocked to see what Soo Yeon is capable of with his arm. In the meantime, Moo Ja keeps trying to find out who’s behind In Woo, and Seo Goon wants to know why Moo Ja is asking around about In Woo.

Soo Yeon gets nose blood in front of Yeo Reum. Yeo Reum tries to help Soo Yeon, but he refuses Yeo Reum’s help and goes to a restroom alone. Then, a group of thugs follows into the restroom. One of them looks familiar to Soo Yeon, and they take Soo Yeon somewhere. When Security Services staff arrives at the mensroom, Soo Yeon is not there. Then, everyone including Moo Ja and In Woo starts to find Soo Yeon.

Dae Gi’s efforts to rescue Soo Yeon at the airport are held back by Moo Ja. Dae Gi and In Woo move out individually to the place where Soo Yeon is taken. In Woo suffers injury while trying to release Soo Yeon from Director Jo, which leads Soo Yeon to use his strengths in order to save In Woo.

Soo Yeon submits a resignation after deciding to leave the airport. Yeo Reum is heartbroken to hear about it from Seo Goon and tries to hold back Soo Yeon from leaving. However, Soo Yeon seems persistent with his decision.