ep. 1
In the streets of Hong Kong, NSA agent Ji-sung (actor Lee Jung-jae) comes too late
to save agent Young-jae who was being chased by Whang Wei. He is overcome
with grief and rage at the death of his friend and comrade.
In the cabin of an airplane heading to Seoul, Ji-sung deliberately bumps into Whang
Wei and snatches his passport from his inside jacket pocket. Whang Wei steps into
the restroom and after taking out some pills he goes into cardiac arrest. Do-kyung
(actress Choi Ji-woo) tells the stewardess that she is Whang Wei’s fiancee and
would like to stay by his side but Ha-jun (actor Lee Jin-wook), an Airport operations
official, tells her to go through immigrations like the other passengers.
Ji-sung watches Do-kyung as she goes to the transfer section instead of heading
towards immigrations. Do-kyung senses that Ji-sung is watching her. After
confirming which hotel room the drug smugglers are staying at, Do-kyung begins to
become suspicious of Ji-sung. When she passes by airport security guards, she
orders them to arrest Ji-sung. But they arrest both herself and Ji-sung instead...
ep. 2
A code red alert is raised at the airport because of Whang Wei. Ji-sung (actor Lee
Jung-jae) points out that Whang Wei is not a petty criminal who is trying to enter the
country illegally and requests backup from Do-kyung (actress Choi Ji-woo) and Ha-
jun (actor Lee Jin-wook).
While searching for Whang Wei in the airport, Ji-sung discovers Whang Wei heading
to the runway and a big chase ensues...
ep. 3
As her new co-workers pile her with drinks, Do-kyung’s (actress Choi Ji-woo)
competitive streak comes out as she drinks every glass they offer to her at her
welcoming party. She starts to develop a stomachache and while she has trouble
walking in the street, she meets Ji-sung (actor Lee Jung-jae) by coincidence. He
helps her when she reels over. They strike a conversation and get to know each
other a little better.
Meanwhile, Ji-sung briefs the airport officials at his first face-to-face meeting with
them about the leaking of sensitive corporate secrets to foreign interests and he
presents the suspects in the case. He bluntly tells the officials that they must raise
the security level of the airport operations. Do-kyung rejects his suggestion because
if she raised the security level, it would cause chaos at the airport. But the security
level is eventually raised to a higher level and flights are delayed, causing a big
problem at the airport. Drawing ire from the airport officials, Ji-sung pushes on to
find the suspect involved in the stealing of sensitive corporate secrets and
discovers one man wearing a necklace with the symbol of the Hong Kong Traid...
ep. 4
Ji-sung gets furious at Ji-sung for letting Charlie, a mid-level Triad Boss and
potential suspect in the corporate secret leaking case, get away. Ha-jun intervenes
and tells Ji-sung that he should back off because he’s being too harsh but Do-
kyung says that she understands Ji-sung’s outburst because she made a grave
mistake.
ep. 5
After illegally entering the country, the daughter of a high North Korean official tries to
commit suicide in the airport’s restroom. Jae-moo (actor Jang Yong) immediately
designates the place as a restricted area. The Airport Operations Control team is
held back from entering the guarded area and they start to gather every piece of
information they can find about the incident.
Seo Myung-woo (actress Moon Jung-hee) hears the sad story of Hye-ryeon who is
trying to illegally enter Korea to be with a North Korean defector she loves but could
not marry due to her family’s disapproval. She asks Ji-sung (actor Lee Jung-jae) to
help the woman meet her lover. However, Ji-sung coldly turns down her request.
Meanwhile, Do-kyung (actress Choi Ji-woo) is surprised when she catches sight
of Lee Kyung (actress Lee Da-hee) on one of the airport security cameras. Lee
Kyung leaves the airport in a hurry. Do-kyung searches everywhere for Lee Kyung in
the airport terminal. Meanwhile, Lee Kyung hides behind a wall as she looks at her
sister, Do-kyung...
ep. 6
The Airport Operations control room grapples with the issue about how to fix the
problem of birds nesting around Runway 2. They try to find a way to reopen the
runway in time to handle the sharp increase of travelers during the summer. Ji-sung
(actor Lee Jung-jae) and Seo Myung-woo (actress Moon Jung-hee) attend a
meeting about quarantine procedures. As Do-kyung (actress Choi Ji-woo) enters
the meeting room, she sees Ji-sung and Seo Myung-woo together and turns back.
Meanwhile, Do-kyung finds Myung-woo struggling with her luggage as she stands
in line to catch an airport bus. Do-kyung offers to help her and eventually invites her
to stay at her place for one night. On the same night, Do-kyung oversees a group of
artists who have been hired to draw a large painting of a bird on the runway after
being inspired from a meeting with North Korean scholars. Ji-sung spots Do-kyung
on the runway and offers to help her out. But Do-kyung turns down his offer and
gives her the address to her home, telling him that Myung-woo is staying there
alone...
ep. 7
Do-kyung (actress Choi Ji-woo) is arrested for drug possession when drugs are
found in her friend’s luggage, which she was carrying. Do-kyung’s office and house
are thoroughly searched by drug enforcement officers. Do-kyung is accused of
being an accomplice to a drug smuggler and the police interrogate her harshly.
Meanwhile, the only witness who can clear the drug possession charges against
Do-kyung is Jang Han-chul, who slipped into a coma after swallowing a large
amount of drugs. Ji-sung (actor Lee Jung-jae) knows that Do-kyung is innocent but
he gets frustrated that he cannot do anything to prove it. When he visits her at the
police station, he gets mad at an officer who insults Do-kyung and punches him in
the face. Ji-sung is suspended from the NSA for his actions. In the meantime, Ha-
jun (actor Lee Jin-wook) flies to Hong Kong to meet with Do-kyung’s friend Kim Jung-
min, who got Do-kyung in trouble, to find a way to get Do-kyung released...
ep. 8
The president of the airport authority bails Do-kyung (actress Choi Ji-woo) out of jail
by guaranteeing that he will watch over her. Do-kyung is surprised to find her house
all clean and tidy after the police searched through it. But then she finds a note left
behind by Myung-woo (actress Moon Jung-hee) and learns that she had tidied up
the mess that the police had made after their search. Do-kyung has mixed feelings
over receiving help from Myung-woo.
Meanwhile, Do-kyung learns from Nan-young (actress Park Tam-hee) that Ha-jun
(actor Lee Jin-wook) went to Hong Kong to find a way to prove that she was framed
for drug possession. Do-kyung gets worried when she cannot reach Ha-jun by
phone and so she flies to Hong Kong.
Ahwei attacks Ji-sung (actor Lee Jung-jae) after he observes him asking people
questions at Hong Kong harbor...
ep. 9
The drug possession charges against Do-kyung (actress Choi Ji-woo) are dropped
after she is proven innocent. However, the airport authority penalizes Do-kyung for
getting herself involved in the drug incident in the first place. Do-kyung’s colleagues
expect her to be dismayed and saddened over the way the company harshly treated
her but they are surprised to see Do-kyung return to work with confidence and
renewed vigor.
Myung-woo (actress Moon Jung-hee) learns from Jae-moo (actor Jang Yong)
where Ji-sung (actor Lee Jung-jae), who has been absent for days, is staying. She
finds him at a remote village on a small island, suffering from a high fever.
Meanwhile, the airport operations division organizes a company outing. While
discussing an ideal place to hold the company outing, Do-kyung suggests that they
go to Jangsung island, which turns out to be Ji-sung’s hometown...
ep. 10
When the luggage transporting system breaks down all flights are grounded and this
creates a major headache for the airport. Do-kyung (actress Choi Ji-woo) tries her
best to fix the problem herself as the conveyor belt spouts suitcases everywhere.
Eventually she gives the order to operate the luggage lines in Terminal 2, which are
not fully operational yet.
Unsettled by the idea of working on another foreign assignment, Ji-sung (actor Lee
Jung-jae) tries to persuade Jae-moo (actor Jang Yong) to give him one more
chance at working at the airport. He succeeds in persuading Jae-moo and while on
the job, he receives an intel report from headquarters that says professional U.S.
dollar counterfeiters will be entering the country. Ji-sung goes through every
passenger’s list and checks all entry points to track down the counterfeiters.
Meanwhile, Do-kyung receives a bomb threat from an anonymous caller...
ep. 11
Ji-sung (actor Lee Jung-jae) discovers that Sergey, a money counterfeiter, had
contacts with Russian mafia figures before he was murdered. Ji-sung finds the
mafia members but he doesn’t find any clues that can help him crack the case. The
Super Note (counterfeit U.S. dollars) case makes little progress...
While talking with Do-kyung (actress Choi Ji-woo), Ji-sung learns from her that
crates of freshly-minted U.S. dollars are delivered from the Hong Kong Bank to the
airport bank by cargo planes every day. So he decides to see how the money is
transported. Ha-jun (actor Lee Jin-wook) gets furious at Ji-sung when he hears him
air his suspicions of the security team. But Do-kyung fully cooperates with Ji-sung’s
investigation.
Meanwhile, Do-kyung drops by Myung-woo’s (actress Moon Jung-hee) office to
find relief from her migraine headaches. Before she leaves, Myung-woo tells her
that it would be nice to see Do-kyung and Ji-sung have a close relationship.
ep. 12
When airport security measures are tightened, the counterfeiters create a diversion
by planting suspicious-looking bags around the airport terminal. Chaos ensues
when the airport discovers the bags, which might contain explosives. Ji-sung (actor
Lee Jung-jae) quickly catches onto what the counterfeiters are trying to do and he
goes to inspect the currency cargo from Hong Kong the next day.
While the airport grapples with the bags that were planted by the counterfeiters as a
diversion, the counterfeiters get away with authentic U.S. dollars, by making a
successful exchange. By pure coincidence, Mr. Uhm (actor Yoon Joo-sang)
stumbles upon the counterfeiters, who were using numerous airport carts to
transport the. Mr. Uhm approaches the gang of counterfeiters to reprimand them for
unnecessarily using too many carts but they respond by attacking him...