Doctor Who - Audio Details

On twentieth-century Earth the Doctor's old enemy, Lytton appears to have allied himself with the ruthless Cybermen who have devised a scheme to bring the human race to its knees.  When the Cyberplanet Mondas was destroyed in 1986, the Cybermen were forced to retreat to the planet Telos.  Now they have journeyed back in time to prevent the destruction of their home world and for Mondas to survive, the Earth must die.

Abridged.