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) Josh MeKenzie as Lucas, Rohan Mirchandaney as Scott, Chiké Okonkwo as Ty -- (Photo by: Sarah Enticknap/NBC)