The Tom Baker Years 1974-1981

As the Doctor and Sarah attempt to return to UNIT HQ, the TARDIS is thrown off course and materializes in 1911 at an old priory owned by Egyptologist Marcus Scarman. While excavating a tomb, the archaeologist became possessed by the spirit of Sutekh, the last survivor of the godlike Osirans. The Doctor and Sarah witness strange and deadly events as Sutekh, who has lain imprisoned in a pyramid for thousands of years, employs Scarman and a legion of robotic mummies in an elaborate scheme that may bring about the destruction of the world.