10,000 B.C. was a time of cataclysmic change on Earth. Extreme climactic fluctuations hurled the planet into a minor ice age; mega-fauna like the saber-toothed tiger and woolly mammoth were suddenly becoming extinct; and early humans began to inhabit North America. Cold and hungry, their fragile communities undertook perilous hunting expeditions. The slaughter of a single mammoth, weighing nearly ten tons, could be the difference between survival and death.