Doctor Who: Classic

Landing at the South Pole, the travellers find that Earth’s twin planet is disrupting a space mission. The Doctor predicts that they will soon receive visitors from the new planet.

Earth’s energy is being drained away by the new planet, Mondas and faces destruction. Cyberman invade the base and threaten to convert the humans into creatures like themselves.

Determined to stop the Cybermen and the energy drain, General Cutler prepares to launch the deadly Z-bomb. Ben and Polly desperately try to stop the launch as the countdown begins.

The Cybermen's energy drain on the Earth reaches its final phase.