Dr. Who: [after being found escaping from a Dalek] Back in the cell?

Dr. Who: Your bomb is designed to slide down this shaft, strike a fracture in the Earth's inner surface, and so release the magnetic core of our planet. But the fracture is near the meeting point of the magnetic influence of the North and South poles. One mistake, one deviation in the aiming of your bomb and enough magnetic energy will be released to destroy you.
Dalek: There will be no mistake! These prisoners are to be exterminated!
Dr. Who: One moment. You must listen to me. If you spare us, I can help you. I can show you how to neutralize this magnetism, so that your plan can be carried out with no danger to yourselves.
Roboman Nine: Section. Roboman Nine as ordered. Halt!
Dalek: Speak quickly!
Dr. Who: But I, I'll show you. Look!
[runs to the intercom]
Dr. Who: Attentoon all Robomen! Attack the Daleks!