Back up to: Season 3
4/4 The Doctor hatches a dangerous plan to capture a War Machine and stop WOTAN.
3/4 As WOTAN's plans for world conquest nearing fruition, the Doctor faces the War Machines.
2/4 WOTAN plans to dominate the world and has ordered the construction of the War Machines.
1/4 In London in 1966, the Doctor and Dodo visit the Post Office Tower and encounter WOTAN.