10,000 B.C. was a time of cataclysmic change on Earth. Extreme climactic fluctuations hurled the planet into a minor ice age; megafauna like the saber-toothed tiger and woolly mammoth were suddenly becoming extinct; and early humans began to inhabit North America. JOURNEY TO 10,000 B.C. brings this unique and thrilling period to life, and investigates the geologic and climate changes that scientists are just beginning to understand. In a major forensic investigation, HISTORY visits early human archaeological sites to uncover fossilized bones, ancient dwellings, and stone weapons, and uses state-of-the-art CGI to recreate the treacherous mammoth hunts and the devastating impact of a comet colliding with Earth.