In central China, a vast underground mausoleum conceals a life-size terracotta army of cavalry, infantry, horses, chariots, weapons, administrators, acrobats, and musicians, all built to serve China’s first emperor, Qin Shi Huang Di, in the afterlife. Lost and forgotten for over 2,200 years, this clay army of 8,000-strong stands poised to help the first emperor rule again beyond the grave.

Watch NOVA’s Emperor’s Ghost Army here or tonight at 10pm on GBH 2