Barbara is hailed as Yetaxa's reincarnation by Autloc, High Priest of Knowledge, and Tlotoxl, High Priest of Sacrifice, when they find her in the precincts of the tomb wearing the bracelet of the deceased Priest, now revered as a god.

And she takes advantage of her position of unaccustomed power to try and dissuade the Aztecs from practising human sacrifice ...
 

'You cannot rewrite history, not one line!''

In the 15th century civilisation is hardly civilised, as the Doctor discovers when the Tardis materialises in an ancient Aztec temple. When Barbara is mistaken for the reincarnation of the Aztec's High Priest, Yetaxa, she seizes the opportunity to put an end to the ceremonial rites of human sacrifice and save the Aztecs from self-destruction.

The Doctor must some how convince Barbara to let history run its natural course and return to the Tardis before their real identities are discovered. Can they escape before they become the next blood sacrifices?

Originally transmitted 23 May - 13 June 1964, this four part adventure starring the original Doctor, William Hartnell is as compelling as ever on video.

Running time: 100 mins approx.

Produced by Verity Lambert
Directed by John Crokett
Cover illustration by Andrew Skilleter