In December 1986, a new planet appears in the Solar System which turns out to be a long-lost twin of Earth's named Mondas. Its inhabitants are the Cybermen.
Did You Know?
This episode takes place in Antarctica in December 1986. See more
A boom microphone shadow is cast on Tito's head after he hangs up the telephone. See more
[last words before regeneration
What did you say, my boy? "It's all over?" That's what you said... but it isn't at all. It's far from being all over...
Writer Kit Pedler's name is misspelled in the opening titles to several of this story's episodes. See more
References Nanook of the North
Composed by Roger-Roger
(uncredited) See more