Chloe navigates life with husband Adam and son Ethan while her sister Nicky battles addiction. Adam's murder unveils long-hidden family secrets, shaking their world.

Massive earthquakes open the Arabian tectonic plate, resulting in unstable weather and freezing temperatures that will be unsurvivable by nightfall. Attempting to reach safety, a vacationing family in Egypt must battle the rapidly cooling temperatures that usher in a new Ice Age, covering the Sphinx, Pyramids, and Sahara Desert with mountains of snow.