Cassidy lives a wonderful life in Chicago, Or as most people know it, Pretty City. Cassidy is lucky to be in pretty city. Her life seems perfect. But, when her sister loses her pretty touch, her family is threatened. Cassidy must do what she never expected. Take her sister, and run.

Correy gets put into the maze with a bunch of teenage boys. She remembers WICKED, and shouldn't. When the gladers find another girl, young this time, they know something is messed up.