THE HARRISES ARE BACK

The Harrises return to 10,000 BC, determined to upload a virus that will stop all sinkholes, despite knowing that this will mean they will never get home again.

An unlikely leader rallies the Clearing to face an oncoming prehistoric threat.

Air Date: Tuesday, Jan. 31 (09:00PM – 10:00PM) on NBC.

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LA BREA -- "Stampede" Episode 208 -- Pictured: (l-r) Melissa Neal as Dr. Caroline Clark , Natalie Zea as Eve -- (Photo by: Sarah Enticknap/NBC)