The Gladers escaped the confines of WCKD’s treacherous mechanical maze only to find out that life outside the walls isn’t as promising as they once thought.

Twentieth Century Fox released the official trailer for “Maze Runner: The Scorch Trials,” the second installment of the “Maze Runner” saga based on James Dashner’s best-selling book series.

“Maze Runner: The Scorch Trials” follows Thomas (Dylan O’Brien) and his fellow Gladers as they attempt to uncover the truth about WCKD, the mysterious and powerful organization responsible for their entrapment in the aforementioned maze. But they soon discover that the world is in complete chaos, and their quest for answers brings them to the Scorch – a post-apocalyptic wasteland where only the strong survive.

“The course of your lives will determine the course of humanity, into light or darkness,” a voice says in the two-minute trailer that you can watch below.

Director Wes Ball and writer T.S. Nowlin return for “Maze Runner: The Scorch Trials,” which will arrive in theaters on Sept. 18.

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Photo: 20th Century Fox