The TARDIS materialises inside an Aztec tomb. Outside it, the Doctor and his companions soon discover that Mexico in the 15th century is a bloodthirsty and dangerous place... And with Barbara mistaken for a reincarnation of an ancient high priest called Yetaxa, the history teacher thinks that she can put an end to the barbaric human sacrifices once and for all. But can she rewrite history without disastrous consequences?
William Hartnell
The Doctor
Carole Ann Ford
Susan Foreman
Jacqueline Hill
Barbara Wright
William Russell
Ian Chesterton
Keith Pyott
Autloc
John Ringham
Tlotoxl
Walter Randall
Tonila
André Boulay
Perfect Victim
