A young man named Thomas (Dylan O’Brien) gets a trap in an underground lift with some packages towards to a place on the ground. When being arrived, it turns out that Thomas has been waited by a group of young men in a place named Glade. This place turns out that is placed in the middle of a giant maze. Thomas woke up with having no memory, getting confused with his own condition and where he is actually. Thomas and the group of young men are a part of a research conducted by an organisation named W.C.K.D
It turns out that the group of young teenagers have been trapped in Glade within three years. They are leaded by a man named Alby (Aml Ameen), the first who arrived in Glade as the same as Thomas’s way. Alby explains all things happened to Thomas who has been officially the new resident of Glade. In that place, the Gladers try to survive by planting and build a place to stay, hunt and so forth.