From the back of the book:
The Maze was only the beginning...
Solving the Maze was supposed to be the end. No more puzzles. No more Variables. And no more running. Thomas was sure that escape meant he and the Gladers would get their lives back. But no one really knew what sort of life they were going back to.
In the Maze, life was easy. They had food, and shelter, and safety... until Teresa triggered the end. In the world outside the Maze, however, the end was triggered long ago.
Burned by sun flares and baked by a new, brutal climate, much of the earth is a wasteland. Government has disintegrated--and with it, order--and now Cranks, people covered in festering wounds and driven to murderous insanity by the infectious disease known as the Flare, roam the crumbling cities hunting for their next victim... and meal.
The Gladers are far from done running. Instead of freedom, they find themselves faced with another trial. They must cross the Scorch, the most burned-out section of the world, and arrive at a safe haven in two weeks. And WICKED has made sure to adjust the variables and stack the odds against them.
Thomas can only wonder--does he hold the secret of freedom somewhere in his mind? Or will he forever be at the mercy of WICKED?