Gavin leads his family toward a new way home, but each step inches everyone closer toward his devastating vision of Eve's passing. Levi, ostracized from the others, is given a chance at redemption when an old foe proposes a deal.
When a massive sinkhole opens in the middle of Los Angeles, pulling hundreds of people and buildings into its depths. Those who fell in find themselves in a mysterious and dangerous primeval land, where they have no choice but to band together to survive. Meanwhile, the rest of the world desperately seeks to understand what happened. In the search for answers, one family torn apart by this disaster will have to unlock the secrets of this inexplicable event to find a way back to each other.