The Church of Saint Sebastian (short story)

The Church of Saint Sebastian was the ninth short story in the Short Trips anthology Short Trips: The History of Christmas. It was written by Robert Smith? (sic). It featured the Fifth Doctor and Nyssa.

Summary
Christmas 1016. The Church of Sebastian holds a terrible alien secret. The Doctor and Nyssa arrive in a small English village to find themselves at the centre of time itself. They're not the only visitors in town. Millions of alien races arrive, demanding control over the great key. The Doctor discovers how one key can destroy the entire cosmos and is powerless to stop it.

Characters

 * Fifth Doctor
 * Nyssa
 * Ioanna
 * Zick
 * Braughie

Continuity
to be added