Fifty years after the Terracotta Warriors' discovery, this documentary unearths new secrets from China's first emperor's mausoleum and its 8,000 pottery soldier guards.Fifty years after the Terracotta Warriors' discovery, this documentary unearths new secrets from China's first emperor's mausoleum and its 8,000 pottery soldier guards.Fifty years after the Terracotta Warriors' discovery, this documentary unearths new secrets from China's first emperor's mausoleum and its 8,000 pottery soldier guards.