La Brea

A catastrophe separates the Harris family, trapping Eve and her son in a prehistoric land. Meanwhile, the world back home desperately seeks answers.

Survivors face unfamiliar terrain and dangerous predators. Gavin uses his visions to convince Homeland Security to launch a sinkhole rescue mission.

A prehistoric creature and a dwindling food supply threaten the camp. Gavin must work with an old friend to bring back Eve and Josh.

A new arrival crash-lands in 10,000 BC. The survivors discover they're not alone, and Gavin uncovers a secret that could help save them all.

The radar signal leads the group to the Tongva tribe — and other modern-day survivors. Gavin, Nathan and Dr. Aldridge plan their next move.

The survivors race against the clock to escape the prehistoric era, causing a divide. Gavin makes a desperate attempt to prevent disaster.

Tensions rise in the camp during a storm, leaving Marybeth and Lucas in danger. Ty finds an unlikely ally while Gavin tries to solve a cryptic message.

Paara reveals the history of the Sky People. Eve learns the truth about Isaiah and Dr. Aldridge. Gavin's investigation leads to a surprising discovery.

Eve and Josh grapple with a revelation about their family, and Silas confronts the group. Forgotten memories unveil a potential way out.

Isaiah's rescue leads to unforeseen complications, and Dr. Aldridge makes a confession. Gavin, Izzy and Ella try to reunite with their loved ones.