Many have tried and failed to find King Cambyses' army, a formation of 50,000 soldiers who vanished in 524 BC after being engulfed in a sandstorm. A team of archeologists attempt to follow the path that the soldiers took, to see if they can find evidence of their final resting place once and for all.

Welcome to The World History Channel. With new uploads every week, we break down the biggest stories that have shaped human history. From the dawn of ancient civilisations up to the modern age, these are the stories from our past that matter the most.

The World History Channel is in partnership with the History Hit network.