The Enemy of the World is the fourth serial of the fifth season of the British science fiction television series Doctor Who, which originally aired in six weekly parts from 23 December 1967 to 27 January 1968.
The Second Doctor, Jamie and Victoria are enjoying themselves on a beach in Australia in 2018 when the Doctor is subject to an assassination attempt. The boss of the would-be assassins, an agent named Astrid Ferrier, rescues them by helicopter and takes them to her boss Giles Kent.
There, the Doctor learns he is a physical double of Salamander, a ruthless megalomaniac. Kent’s home is surrounded by troops led by Security Chief Donald Bruce. The Doctor is persuaded to impersonate Salamander to save his companions and to gather more information. The Doctor’s companions infiltrate Salamander’s palace in Europe to gather evidence against him.
Jamie and Victoria use their new roles in the palace to get close to Fariah, Salamander’s food taster, hoping to gather information. Fariah reveals she was blackmailed into her role. Jamie causes a diversion to try to facilitate an unsuccessful rescue attempt on Denes by Astrid. Denes is shot dead. Though Astrid escapes, Jamie and Victoria are arrested.
Salamander discovers he is being impersonated and returns to his research station to confront the impostor. Fariah tells the Doctor that Jamie and Victoria are prisoners in the Research Centre. Before they can act, the building is raided by Salamander’s deputy Benik and his troops. Fariah is killed and the others escape.
It is revealed that Salamander has trapped a group of scientists below the Research Centre and is using their knowledge to create natural disasters in order to destabilise the world and increase his influence.
Bruce and the Doctor have Jamie and Victoria released from the centre, and the Doctor sends them back to the TARDIS. He then goes to the records room, where Kent, believing the Doctor to be Salamander, accidentally reveals that they conspired together to trap the scientists below ground.
Astrid arrives, incriminating Kent further as people from the bunker identify him. Kent flees into the cave system beyond the Records Room. There, he encounters the real Salamander, who shoots him in the back. As he falls, Kent sets off a set of explosives that destroy the bunker and damage the research centre.
A shaken and bleeding Salamander takes refuge in the TARDIS, pretending to be the Doctor. The real Doctor arrives, and expresses his intention of turning Salamander to the authorities. Salamander attacks the Doctor, but he fights back with Jamie’s help.
In a panic, Salamander pulls the dematerialisation switch while the TARDIS doors are still open, and falls out into the time vortex.
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To view the list of other Doctor Who serials, please click this link
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