1. Pilot

When a massive sinkhole opens in Los Angeles, the Harris family is split in two.

6. The Way Home

With time running out before their window home closes, the survivors of the sinkhole hatch a final escape attempt.

7. The Storm

When a chaotic superstorm hits the clearing, a structural collapse puts Marybeth and Lucas’ lives in danger.

8. Origins

With cold weather fast approaching, Eve, Levi and Ty return to the mysterious fort in the hopes they might share their 10,000 BC survival skills.