Prima ballerina Dominika Egorova faces a bleak and uncertain future after she suffers an injury that ends her career. She soon turns to Sparrow School, a secret intelligence service that trains exceptional young people to use their minds and bodies as weapons. Egorova emerges as the most dangerous Sparrow after completing the sadistic training process. As she comes to terms with her new abilities, Dominika meets a CIA agent who tries to convince her that he is the only person she can trust.
Believing they have left behind shadowy figures from their past, newlyweds Christian and Ana fully embrace an inextricable connection and shared life of luxury. But just as she steps into her role as Mrs. Grey and he relaxes into an unfamiliar stability, new threats could jeopardize their happy ending before it even begins.
Thomas leads his group of escaped Gladers on their final and most dangerous mission yet. To save their friends, they must break into the legendary Last City, a WCKD-controlled labyrinth that may turn out to be the deadliest maze of all. Anyone who makes it out alive will get answers to the questions the Gladers have been asking since they first arrived in the maze.