First air date
September 28, 2021
In La Brea, a giant sinkhole under the La Brea tarpits pulls hundreds of people and a section of Los Angeles into the prehistoric past. The show follows these victims in prehistory as they struggle to survive and return to their own time, as well as the efforts of investigators from the Department of Homeland Security to understand the time portal pits located in Los Angeles and the Mojave Desert. As the Harris family strives to overcome the harsh environment of the past, they discover that time travel has had a greater impact on their lives past and future than anyone could have guessed.