The newly-regenerated Doctor helps UNIT battle a sentient robot being manipulated by a corrupt scientific organization.
| Directing | Christopher Barry | Director |
| Production | Barry Letts | Producer |
| Writing | Robert Holmes | Script Editor |
| Sound | Dudley Simpson | Original Music Composer |
| Writing | Terrance Dicks | Writer |
| Costume & Make-Up | James Acheson | Costume Design |
| Art | Ian Rawnsley | Production Design |
| Costume & Make-Up | Judy Clay | Makeup Artist |
| Production | Peter Grimwade | Production Assistant |
| Crew | Dick Mills | Special Sound Effects |
| Lighting | Nigel Wright | Lighting Director |
| Sound | John Holmes | Sound |
| Sound | Trevor Webster | Sound |
| Lighting | John Mason | Lighting Director |
| Sound | Vic Godrich | Sound |
| Visual Effects | Clifford Culley | Visual Effects |
