The Second Doctor and Jamie arrive on what appears to be a space station called the "Wheel in Space" it's here that they meet Zoe Herriot a young parapsychology librarian, The Doctor hits his head concussing him leaving Jamie and Zoe to defend off the Cybermen from taking over "The Wheel in Space."
| Writing | Kit Pedler | Story |
| Directing | Tristan de Vere Cole | Director |
| Writing | David Whitaker | Writer |
| Production | Peter Bryant | Producer |
| Sound | Brian Hodgson | Music |
| Writing | Derrick Sherwin | Script Editor |
