The Doctor, John and Gillian are on the planet Zebadee, an intellectual meeting place. While John and Gillian go to meet some of the young friends they've made at the university, the Doctor visits Madam Rosa, a fortune teller who informs him that he will soon encounter deadly robots. The Doctor realises, if his next adventure will take him to the edge of death, he must leave John and Gillian on Zebadee. He talks to the children and convinces them to enrol at the university before he travels on alone.