Things are quiet and peaceful in small-town Jericho, Kansas, but when a baffling explosion occurs in the distance, Jericho's residents are plunged into social, psychological and physical chaos. No one knows what to think, and fear of the unknown takes over the town, especially because its isolation cuts it off from outside help. When nearly everything they know seems gone, will the residents of JERICHO band together to face their unfamiliar and mysterious new world?