When the Doctor restores the power to the Ark, the humans begin to revive. But the station has been invaded by the giant insectoid Wirrn.
- Drama
- Year 1975
- 24 min
Tom Baker begins his seven glorious years in the role by battling a homegrown robotic menace, before whisking his companions first to mankind’s far future, and then the Daleks’ past.
- Year: 1974
