La Brea

On the series premiere, the Harris family is split up when a huge sinkhole opens in Los Angeles; Eve and her son end up in a primeval world.

Eve navigates the dangerous wilderness in order to save Josh; Gavin and Izzy work to prove survivors are alive inside the sinkhole.

Eve and Ty venture into the forest on a risky hunting expedition; Gavin must put his faith in the hands of an old friend.

The sight of a crashing plane spreads a wave of unexpected hope through the clearing; Gavin and Izzy seek help from an unlikely source.

Eve, Levi and the rest of the search party explore a mysterious fort; Gavin and Izzy embark on a dangerous and unauthorized mission.

With time running out before their window home closes, the survivors hatch a final escape attempt, forcing Eve to make an impossible choice.