A mountain republic lived under a permanent cloud ceiling, thriving in shadow—until a catastrophic chain of wildfires turned day to pitch-black night for months. This episode follows how darkness held, shaped, and ultimately erased them.

A coastal civilization thrived on a chain of barrier islands—until a never-recorded mega-tsunami sealed their world under a sheet of natural glass. This episode visits a city frozen mid-life.

A prosperous bronze-age city disappears in a single morning when its bedrock melts beneath it. This episode reconstructs its final hours—how its people lived, how they reacted, and why the land betrayed them.