2/4 Sarah is a prisoner of the Kraals and the Doctor discovers the truth behind the village.
1/4 All is not as it seems on 'Earth' as the Doctor and Sarah discover the 'dead' are walking.
4/4 Inside the pyramid on Mars, the Doctor and Sarah must prevent Sutekh's release.
3/4 The mummies are building a rocket to fire at the pyramid on Mars...
2/4 The Doctor, Sarah and Laurence Scarman are being hunted by Sutekh's robot mummies.