The Tomorrow People

The Revenge of Jedikiah, Part 1: Curse of the Mummy's Tomb (3x11)

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Jedikiah, a shape-changing android believed to have been destroyed, was rescued and sent to ancient Egypt by an alien race. He was placed in a tomb and remained there for 500 years until it was reopened by Professor Cawston and Professor Johnston. Freed Jedikiah has one thing on his mind: revenge on the Tomorrow People.