Portal:Doctor Who/Selected story/7

The Edge of Destruction (also known as Inside the Spaceship, among other titles) is a serial in the British science fiction television series Doctor Who, which was first broadcast in 2 weekly parts on February 8 and February 15, 1964.

After the First Doctor's failed efforts to regain control of the TARDIS's faulty control system in The Daleks result in an explosion causing everyone to black out, the Doctor and his companions find themselves trapped in the craft. Strange occurrences cause them to suspect the TARDIS has been infiltrated or worse — that one of the crew members has sabotaged the TARDIS.