This captivating documentary series invites viewers to question everything they think they know about prehistory. Journalist Graham Hancock embarks on a global journey, exploring archaeological sites in search of clues to an advanced civilization that may have thrived thousands of years ago. Hancock presents a bold theory: during the last ice age, a sophisticated society existed but was wiped out by catastrophic meteor impacts roughly 12,000 years ago. He suggests that survivors of this lost civilization shared their knowledge with hunter-gatherers across the globe, sparking the development of early societies.
Hancock visits intriguing sites and natural formations, presenting what he claims is evidence of this forgotten culture. He also asserts that mainstream archaeology may be overlooking—or even concealing—critical findings that support his theory. The series offers a fresh perspective on ancient history, blending mystery, controversy, and the thrill of discovery for those ready to rethink humanity's distant past. All eight episodes are available in a single, continuous video exclusively on our website.

This episode is centered around how science, in particular the work of Clair Patterson (voiced in animated sequences by Richard Gere[33]) in the middle of the 20th century, has been able to determine the age of the Earth. Tyson first describes how the Earth was formed from the coalescence of matter some millions of years after the formation of the Sun, and while scientists can examine the formations in rock stratum to date some geological events, these can only trace back millions of years. Instead, scientists have used the debris from meteor impacts, such as the Meteor Crater in Arizona, knowing that the material from such meteors coming from the asteroid belt would have been made at the same time as the Earth. Patterson also examined the levels of lead in the common environment and in deeper parts of the oceans and Antarctic ice, showing that lead had only been brought to the surface in recent times. He would discover that the higher levels of lead were from the use of tetraethyllead in leaded gasoline resulting in government-mandated restrictions on the use of lead.