- Global Conspiracy? - A spoof investigative report about the strange happenings in the village of Llanfairfach, written by and starring The League of Gentlemen's Mark Gatiss.
- Commentary with actress Katy Manning, producer Barry Letts, and script-editor Terrance Dicks.
- Visual Effects - an interview with the story's visual effects designer, Colin Mapson, including a demonstration of how to build a giant maggot.
- Robert Sloman - an interview with the story's writer.
- Stewart Bevan - an interview with the actor who played Professor Clifford Jones.
- Picture Gallery.
- Production Notes.