In Maze Runner, a group of kids live in a large field enclosed by high walls. They are not there by choice and have no memory of ever living anywhere else. The field is part of a large maze that is inhabited by large frightening creatures designed to kill. Escape is the hope that drives some of the kids to become runners and face the obstacles in the maze.
The second book, the Scorch Trials, finds some of the kids making their way across a barren landscape and avoiding those who have caught a horrible disease called the Flare that drives them mad.
By the third book it is hard to know who the main characters can even trust. They have been manipulated so many times and had their memories erased. When things finally seem to be going their way, something always seems to happens to hamper their attempt to finally be free of the horrible world they have been living in.
Click here for more info about this book from the Westfield Washington Public Library.