検索キーワード： "Terrance Dicks" ハードSF

Returning to Earth in the 21st Century, the Doctor, Jamie and Zoe immediately find themselves caught in the midst of a crisis. T-Mat, a form of instantaneous transportation essential to the smooth running of life on Earth - is going disastrously wrong. The Doctor discovers that the T-Mat base on the Moon has been taken over by a group of Ice Warriors, led by the villainous Slaar. With their home a desolate and dying planet, the Martian invaders see Earth as a world ripe for conquest.

In The Time Meddler, the turbulent English coastline in 1066 is the scene of a troubled encounter between the Meddling Monk and the First Doctor, Steven and Vicki. In The Deadly Assassin, the Fourth Doctor returns to Gallifrey and is framed for presidential murder. In Shada, the Fourth Doctor and Romana visit their old friend, the retired Time Lord Professor Chronotis, at Cambridge University. In The Mark of the Rani, the TARDIS lands the Sixth Doctor and Peri in the Industrial Revolution.