An epic adventure begins 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. 

RELATED | La Brea Review: A Family-Friendly Romp Through Primeval Hollywood

The cast includes Natalie Zea, Eoin Macken, Jon Seda, Nicholas Gonzalez, Chiké Okonkwo, Karina Logue, Zyra Gorecki, Jack Martin, Veronica St. Clair, Rohan Mirchandaney, Lily Santiago, Josh McKenzie and Chloe De Los Santos. 

The pilot episode of La Brea airs Tuesday, Sept. 28 (9-10 pm ET) on NBC.


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LA BREA -- "Pilot" -- Pictured: Eoin Macken as Gavin Harris -- (Photo by: Sarah Enticknap/NBC)