All 14 episodes from the second season of the science fiction drama. When a sinkhole appears in Los Angeles at the site of the La Brea Tar Pits, people, buildings and vehicles are quickly swallowed up. While the survivors try to piece together what happened, they discover that they are stuck in a primeval land and must work together if they want to survive.

In this season, the origin of the sinkholes and their ties to the mysterious Lazarus Project become known. The episodes are: 'The Next Day', 'The Cave', 'The Great Escape', 'The Fog', 'The Heist', 'Lazarus', '1988', 'Stampede', 'Murder in the Clearing', 'The Return', 'The Wedding', 'The Swarm', 'The Journey, Part 1' and 'The Journey, Part 2'.