Written in the late 60s, during the sexual revolution, Le Guin is still ahead of her time. This story could be seen as foreshadowing of events over forty years in the future from when it was published.

March 4, 1215:  The TARDIS materializes in the middle of a jousting match between King John’s champion, Sir Giles Estram, and Hugh Fitzwilliam, son of Ranulf Fitzwilliam...

Following the events of the previous adventure, Charlie decides in may be time for her to leave. This adventure proves to be one of her finest. But is her story over?

The Doctor and Liz are summoned to a nuclear research facility where there have been mysterious power outages. Also, one of two pot-holers was killed while the other seems to be having a breakdown, drawing pictures of pre-historic creatures on the wall.

A team of scientists find a strange pod-like device in the snow-covered wasteland of Antarctica. Things turn horrible with it opens and a tendril shoots out seeking a living victim. The Doctor is called by the World Ecology Bureau to unravel the mystery. Will he be in time to save mankind from the alien Krynoid?