Methys never expected the black rain. Her family's already broken. All she has left are her father and her best friend. Her father infected; her best friend dead. The only thing she can do is to try to stop the black rain. Arin never expected the black rain. His family's already broken. All he has left are his mother and his friends. His mother is left alone and facing the possibility of getting infected; his friends recklessly stepping out into the black rain with him. The only thing he can do is to try to stop the black rain. When Methys and Arin's paths cross, they decide to work together to stop the rain. Will they succeed? Or will it end in despair?