The Doctor tries to find the base Jasper was heading for. He doesn't know that this is the base of his old friend the Brigadier. While travelling through the Arabah desert, the Doctor comes across a large Cyberarmy. He theorizes that the Cybermen are planning to attack the Valley and are sending reinforcements.
Previous episode: Death to the Cyborg
Next episode: The Edomites
- The Wadi Arabah is an actual place located near the Valley. All the episodes are located in real geographical locations. The Doctor travelled through the eastern Jordan part of the wadi.
- The Cyberarmy has the largest number of fake players ever achieved in the series.