Under the Dome season 1

Chester's Mill used to be an ordinary small American town untill one day it was covered with unseen barrier. After that hundreds of people left "locked" in town. Connection doesn't work, there is no electricity, food supplies are interrupted and medicines are just about to finish in pharmacies because there are many people who were injured. That barrier came out of nowhere and there is no idea who and why might be connected with it. Those people who left the town have no possibility to come back and those left inside have no possibility to leave - the barrier turns to be impenetrable, cars blow up when reach it and army can’t get through it even using laser and chemical weapons. Some people experience a mystical strokes after touching it. The barrier is later known as the Dome, it has 16 km in diameter and 6 km height. The life in Chester's Mill changes rapidly.