Tom Baker (The Doctor), Louise Jameson (Leela), Alex Lowe (Damien Stephens/Robomen), Mark Benton (Jack Coulson), Caroline Keiff (Lydia Harding), Dan Starkey (Kevin Winston/Robomen), John Dorney (Robomen), Nicholas Briggs (The Daleks)
The Doctor and Leela find themselves in the middle of London at the time of a new energy crisis. The GlobeSphere Corporation seems to have all the answers - but several thousand protestors beg to differ.
What is the connection between the National Gallery and a base on the Moon? Has radical thinker Damien Stephens simply sold out, or does he have a more sinister agenda?
The Doctor has detected a mysterious energy reading. Could it be that the most evil creatures in the universe have returned to claim ultimate victory once and for all?
(Duration: 60' approx)