The Age of Steel

"The Age of Steel" is the sixth episode of the second series of the British science fiction television programme Doctor Who. It was first broadcast on BBC One on 20 May 2006 and is the second part of a two-part story. The first part, "Rise of the Cybermen", was broadcast on 13 May. The episode is set in London in a parallel universe. In the episode, the businessman John Lumic (Roger Lloyd-Pack) has overthrown Great Britain's government and taken over London. A human resistance movement seeks to stop Lumic's plan to convert humanity into Cybermen by destroying Lumic's transmitter controlling London's population. Plot Synopsis The Tenth Doctor incinerates the Cybermen surrounding himself, Rose, Mickey, and the Preachers by using the recharging power cell from the TARDIS. The group escapes with Pete. As they flee, Pete explains to the Preachers that he is "Gemini", the Preachers' secret source of information on John Lumic. From his hovering zeppelin, moored near the Cyberman factory at Battersea Power Station, Lumic activates the EarPod devices and uses them to control the people of London, including Pete's wife Jackie, and bring them in to be upgraded.