Earth is visited by an alien species that threatens humanity's existence. Events unfold in real time through the eyes of five ordinary people across the globe as they struggle to make sense of the chaos unraveling around them.
Men and women live in a giant silo underground with several regulations which they believe are in place to protect them from the toxic and ruined world on the surface.
A woman forms an unexpected relationship with her 16-year-old stepdaughter while searching for the truth about why her husband has mysteriously disappeared.