What hidden knowledge lies in our ancient past? A team of renowned scholars has come together to decipher the riddle of our origins and piece together our forgotten history found in monuments and texts across the world.

From fangs to claws to venomous stings, they all wield deadly weapons. But which creature will be crowned the fiercest of all?

Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.