Doctor Who - Planet of the Spiders (1)

Seizoen: 11 - Aflevering: 21 / 377 - Eerst uitgezonden: 04 mei 1974 - Episode ID: 75846

England, the near future. Mike Yates, formerly of UNIT, is disturbed by odd happenings at a monastic retreat. Using Sarah as a liaison, he is able to warn the Doctor and the Brigadier. But how is the Doctor's research into ESP and the blue Metebelius III crystal connected to Mike's warning?