What is a summary of "the maze runner"?

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"Thomas (Dylan O'Brien), a teenager, arrives in a glade at the center of a giant labyrinth. Like the other youths dumped there before him, he has no memory of his previous life. Thomas quickly becomes part of the group and soon after demonstrates a unique perspective that scores him a promotion to Runner status -- those who patrol the always-changing maze to find an escape route. Together with Teresa (Kaya Scodelario), the only female, Thomas tries to convince his cohorts that he knows a way out."

A person is put in a simulator by a person in charge. only like 15 get out alive and the rest are eaten alive by monsters that live in a maze. the maze is the way out they figure out the maze and run through it. well once they get past the maze is when they figure out that it was test and that they are "free" but not before they kill like 3 of them. (p.s. they are just gonna enter a new test they'll have to pass)