Doctor Who - The Sontaran Experiment (2)

Seizoen: 12 - Aflevering: 10 / 393 - Eerst uitgezonden: 01 maart 1975 - Episode ID: 76156

Earth, the distant future. Beaming down from the Nerva Beacon, the Doctor and his friends discover Earth is habitable once more. Unfortunately a Sontaran officer is conducting tests on a group of human colonists to determine their ability to withstand a full-scale invasion...