The Doctor and Tegan meet again and remember their terrifying adventure against the Cybermen to save the Earth... and the friend they lost along the way.

Jamie and Zoe meet to remember their encounter with robots, clockwork soldiers and Medusa.

The Doctor and Peri meet again and remember their conflict on the mining planet Varos: a world that entertains its people with sadistic TV broadcasts.

Jo Jones and Clyde Langer meet again as she remembers when the Time Lords summoned three Doctors to fight an awesome adversary from Gallifrey's past.

Steven and Vicki meet again and remember their first adventure battling a time-travelling Monk about to change the course of history in 1066.

The Doctor and Ace meet again and remember their battle against an ancient evil in World War Two where a Viking curse is bringing the dead back to life.

In 1911, an ancient threat rises in the tombs of Egypt and brings terror to an English country house. Sutekh has risen, and the world must beware.