Dr Stuart Gorey was part of a research project on the planet Fraternity that was led by his wife, Professor Sarah Emmins.

When a duplicate of team member Ian Bird arrived at the research station, Stuart was suspicious of its origins and motives. He was cooperative during the investigation by the Fifth Doctor and Nyssa, and tried to convince the Doctor that the duplicate was part of a plan by a power bloc that was trying to sabotage their research.

The duplicate took Sarah hostage, but she was rescued by Ian. Stuart was killed by the duplicate, who escaped. (PROSE: The 57th)