The Saga featured the (Fifth, Sixth and Seventh) Doctors and Bernice Summerfield, and chronicled the events surrounding Grayvorn and the Relic in the city of Excelis on the planet Artaris. Each of the four audio dramas occurred in a different time period. None of the Doctors were accompanied by companions. However, Iris Wildthyme (portrayed by Katy Manning) did feature in the first and last audio dramas. David Darlington's score for the saga was released on CD as Music from the Excelis Audio Adventures in December 2002.