After landing near the Snowcap base in the Antarctica, the Doctor, Ben & Polly find themselves embroiled in an international situation involving a mysterious planet and an energy drain on the Earth itself! Plus Cybermen! Plus the first regeneration!

I came out of the story with a few questions of my own, along with one from email. 

I also give a little background to more of the creation of the Cybermen, along with some suggestions for my top 3 list of Cybermen stories in the first 7 Doctors.

What are YOUR favorite Cybermen adventures? I'd love to know!