New discoveries might lead investigators to the legendary group of 300 Spartan warriors who died fighting off one million invading Persians, and using cutting-edge tech, experts reconstruct the lost battlefield at Thermopylae to uncover the secrets of their last stand.

The Iceman, Ötzi, is the world's oldest and most perfectly preserved mummy, and brand-new cutting-edge forensic technology is revealing his darkest secrets; these discoveries could change everything we know about Copper Age Europeans who lived 5,000 years ago.