Following a devastating world war, the surface of the planet has been covered in a substance called Dust, a weapon that can break down the physical make up of entire cities, reducing them to rubble and preventing citizens from rebuilding their lost metropolises for several years. In order to survive, humanity has taken refuge in crowded, underground cities. Ian Blum is a 15 year old boy living in one such city. His crippling social anxiety confines him to a solitary life at home, while his parents are away at their jobs. The person he interacts with the most is his home school professor, Michael Wasley. One night, Ian is visited by a mysterious figure in a dream. The man warns Ian of a great earthquake that will destroy the cities, killing all of the inhabitants. The man charges Ian with the task of getting everyone out. Soon after, Ian finds out that he isn't the only one who has had this dream and reluctantly joins a group of rebels who has made it their mission to drive everyone from the cities for their own safety, however, no one believes in the stranger's prophecy. Ian and the rebels must find a way to get the people to safety at any cost.