Doctor Who (1963) Season 4 Episode 25 The Moonbase (3)

In Doctor Who season 4 episode 25, titled "The Moonbase (3)", the Doctor and his companions arrive on the moon in the year 2070. They discover that a group of humans have established a base there, but are under attack from a mysterious force that is causing illness amongst the crew.

The Doctor and his friends soon realise that the attacks are coming from the Cybermen, a race of cyborgs that have previously crossed paths with the Time Lord. The Cybermen are using the base's weather control system to create a deadly virus that will infect and convert the crew into their own kind.

Along with the help of the remaining human crew, the Doctor sets out to stop the Cybermen and their plan to take over the moon base. However, their task becomes more complicated when one of the humans is revealed to be infected by the virus and is slowly turning into a Cyberman.

As the team races against time to find a cure for the virus and stop the Cybermen, they must also confront the possibility that one of their own may have been working secretly with the cyborgs. With tensions running high and danger at every turn, the Doctor must use all of his wit and resources to overcome the threat and save the moon base from destruction.

In this thrilling instalment of Doctor Who, audiences are treated to the classic blend of action, intrigue, and sci-fi that has cemented the show's place in pop culture. From the ominous appearance of the Cybermen to the tense moments of betrayal and suspense, "The Moonbase (3)" promises to keep viewers on the edge of their seats from start to finish.