Just as the Gladers reach the Right Arm and find a sense of safety, reveals she has been in contact with WCKD all along. She believes that WCKD’s mission to find a cure is the only way to save humanity, regardless of the cost. Her betrayal leads to a massive WCKD ambush. The Conclusion
: The group must survive "Lightning Storms" and the extreme heat of the desert. The Betrayal subtitle Maze.Runner.The.Scorch.Trials.2015.720...
: They encounter terrifying, mutated humans in the ruins of a shopping mall and abandoned city tunnels. Just as the Gladers reach the Right Arm