The Doctor arrives on Mars in the year 2059 and joins the first human Earth colony led by Adelaide Brooke. The day he arrives is also the day history records the entire settlement destroyed in an unknown cataclysm with all members of the settlement being killed. Everyone soon realizes that colonists are being infected by some unknown agent and are being transformed into zombie-like creatures. For reasons that are eventually explained, The Doctor is not prepared to save them and tells Brooke that she has to die. He quite torn by this decision and eventually chooses another path, one that will have other repercussions for him in the future.
Did You Know?
This story was initially envisaged as a Christmas special. Several festive references remain, such as the crew on Mars preparing for Christmas dinner, and the snowing when the Doctor arrives back on Earth as he exclaims how he likes snow. See more
Mars is shown in glowing sunlight and a red-orange sky. In reality Mars has a "butterscotch" (yellow-brown) sky during the day and a pink sky at sunset and sunrise due to high levels of dust in the atmosphere. See more
Imagine... Imagine you knew something. Imagine you found yourself somewhere. I don't know, Pompeii. Imagine you were in Pompeii. And you tried to save them. But in doing so, you make it happen. Everything I do, just makes it happen.
Doctor Who Closing Credits
Written by Ron Grainer
Performed by BBC National Orchestra of Wales See more