PYRAMIDS OF MARS
In this Fourth Doctor adventure, the TARDIS materialises on Earth in the year 1911 inside an old priory owned by Egyptologist Marcus Scarman. Scarman has been possessed by Sutekh, last survivor of the god-like Osirans, who is being held prisoner inside a pyramid in Egypt by a signal transmitted from a pyramid on Mars.
Sutekh wants to be free and instructs Scarman to use robots, which look like Egyptian mummies, to build a pyramid-shaped rocket with which to destroy the Martian pyramid. The Doctor blows up the missile but falls under Sutekh's control and is made to transport Scarman to Mars to cut off the signal controlling the prison. The Doctor, freed of Sutekh's influence, rushes back to Earth and uses the time control from the TARDIS to move the end of the space-time tunnel that Sutekh is travelling down into the far future where, unable to reach the end, Sutekh ages to death.