Alina & Lev are two siblings living in Pripyat, one of the Soviet Union's proud nuclear cities. Both are asleep in their beds. Their cousin, Yuri, is a custodian at the Chernobyl Nuclear Power Plant, where he's fiercely attacking a spill in the hallway with a mop. Alina's best friend, Sofiya, sleeps just a few doors down. Her father is an engineer at the plant, a fact that has always filled her with pride. In five minutes, Reactor No. 4 will explode in a ball of fire. It will expel radiation across their town for nine days before it's finally contained. For the people of Pripyat, it will be far too late.