A grisly discovery of more than 400 mutilated bodies in Mexico is turning history on its head. Aztec Massacre paints a new picture of the violent relations between the Aztecs and the Conquistadors and rewrites much of what we thought we knew about the Aztec civilization.

A Firefly Production for Thirteen/WNET New York and ITVS International in association with Five, Channel Four International and History Channel (UK).