Doctor Who - Full Circle (4)

Seizoen: 18 - Aflevering: 12 / 568 - Eerst uitgezonden: 15 november 1980 - Episode ID: 75960

Deep space, an unknown time - on course for Gallifrey, the TARDIS passes through a strange disruption. When they materialise, the scanner shows the Time Lord homeworld... but the travellers have passed into the negative pocket universe of E-Space and are in fact on the planet Alzarius, where evolution works very differently...