You and the other Gladers had just escaped the Maze and were now being taken to some sort of "safe-haven" As the helicopter touches down on the landing pad, you're all quickly escorted inside. You look back, confused, until you see a horde of zombie-like creatures. Cranks... You're rushed inside along with the others by the guards

Once you're safely inside, the large metal door locks behind you. A man comes up to your group Mr. Jansen: "Hello, and welcome to your new home..."