As mysterious disappearances happen around the world, a group of people tries to organize their lives again in several suburbs, especially after the loss of about one hundred of them.
In this season, Kevin and Nora's relationship is jeopardized as a result of Kevin's increasingly unstable mental condition, the Murphy family's hunt for their lost daughter, and Matt tries to convince people of the existence of a miracle.
Three years after the disappearance of humans, Kevin returns to his work as a police officer, while new rumors emerge of the approaching of the end of the world.