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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.
First Air Date : Sep 28, 2021
Last Air date : Feb 13, 2024
Episode : 30 Episode
Season : 3 Season
Runtime: 45:14 minutes
Studio: NBC
Country: Australia, United States of America
