"Rise of the Cybermen" is the fifth episode of the second series of the British science fiction television programme Doctor Who, which was first broadcast on BBC One on 13 May 2006. The episode introduces a terrestrial reinvention of the Cybermen, as well as a parallel universe which would serve as a recurring plot element in the series. It is the first part of a two-part story, the concluding part being "The Age of Steel", broadcast on 20 May.