Operation Volcano - Part One. The Seventh Doctor and Ace have long travelled through space and time in the Doctor's TARDIS (Time and Relative Dimension in Space), facing all manner of deadly alien intelligences, and witnessing countless unique wonders. Most recently, they defeated the war-like Kla-Shi-Kel - without firing a shot! Afterwards, while witnessing the Kepler Alignment - in the company of some marshmallows and a roaring fire - the TARDIS alerted them pair to an urgent request for assistance from an old friend: Group Captain Gilmore…