As the Dome begins to reveal its ultimate agenda, the townspeople are forced to question what and whom they can trust as fresh threats appear, new residents emerge and surprising alliances form. However, the residents of Chester';;;;;;;;;;;s Mill quickly realize that their new life outside of the dome may not be as it appears. When a massive, transparent, indestructible dome suddenly separates the small town of Chester’s Mill from the rest of the world, the people trapped inside must find their own ways to survive.