A terrorist incident occurred at the airport of an industrial city in the American Midwest. Claire, a member of an NGO, rushed to the scene and discovered a zombie among the passengers. However, it was too late; after a security guard was bitten, the infection began to spread gradually among the passengers and staff. The people at the airport were plunged into panic as the situation descended into chaos. Then, a plane that had already taken off made an emergency landing, crashing into the airport terminal. To everyone's horror, all the passengers and crew members who disembarked from the plane had turned into zombies.