Every month, a new boy with no memory of anything but his first name finds himself in that elevator box. The elevator box surfaces from under the ground once every week and supplies new food, tools, medicine, and sometimes weapons.
He gradually discovers that the Glade is run by two boys: Alby, the leader, and Newt, the second-in-charge, who both maintain order by enforcing simple but effective rules. He has no memory of who he is or how he got there. Thomas wakes up in a metal elevator that brings him to the Glade.