4 episodes, broadcast: 25 Jun - 16 Jul 1966
The TARDIS arrives back on Earth

, but the Doctor scents
something wrong and he and Dodo set off to the Post Office Tower

. He meets with Professor Brett and is introduced to
the computer WOTAN, but later meets a concerned
Sir Charles Grover at the Royal Scientific Club.
As a mystery unfolds, Ben agrees to check out a warehouse for the Doctor
and heads to it through the market

.
However, it turns out that WOTAN has created War Machines to take over
London. The army are called in but are beaten back

.
The War Machines set out on their rampage through London and a warning
is made to the population to stay inside

. One machine
destroys a phone box

and another crashes through
dustbins

. The Doctor decides to capture one and sets up a trap

, and he and Sir Charles watch as the plan succeeds

. The Doctor modifies the Machine and it heads off
back to the Post Office Tower

and WOTAN is stopped.
Further Reading
»
On Location: Full scene breakdown and additional facts on locations used in the story (p20-22)
»
The Doctor Who Production Guide Vol II: Recording Diary for the story (p32-34)
»
DWM: Issue 185: Archive Feature on the making of the story
»
DWM: The Complete First Doctor: Production and Archive Extra (p79-82)
Associated Links
»
The Doctor Who Guide - Detailed synopsis of the story.
»
BBC Doctor Who Episode Guide - Information and Features on the story.
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