Classic Who S20 • Serial 5 · (4 episodes)
Enlightenment
Materialising on an Edwardian sailing yacht in space, the Fifth Doctor and his companions Tegan and Turlough find themselves caught up in a mysterious and deadly race. The prize is Enlightenment - the wisdom to find your heart's desire - and it quickly becomes clear that one of the crews will let nothing and no-one stop them claiming victory.
As the Black Guardian pressures Turlough to complete his side of their murderous pact, it seems that the Doctor may not survive to cross the finish line...
4 Episodes:
After receiving a warning from the White Guardian, the Doctor initially believes the TARDIS has landed aboard an Edwardian clipper ship - but all is not as it seems. While the time travellers are caught up in the omnipotent Eternals' race for the ultimate prize, the Black Guardian's scheme to destroy the Doctor enters the end-game - but which side is Turlough a pawn of?
Captain Striker and his officers reveal themselves to be Eternals, mind-reading creatures who live outside of time and who require Ephemerals (humans and other "time dwellers") to relieve them of their emptiness. They race against other Eternals for the grand prize of Enlightenment, by which to grant their deepest wishes. That can't be good for the universe, but how can the Doctor strategise against beings adept at reading his every thought?
Turlough's panic puts him aboard a pirate ship where Captain Wrack uses his presence to invite all the other captains over for dinner. She's been picking off a few of her greatest rivals in the race and now sees an opportunity to clear the field once and for all and become the clear winner.
Tegan isn't aware she been outfitted with a device to destroy Captain Striker's ship. While the detonation will merely slip the indestructible Eternals back into the realm of eternity, nothing nearly so elegant or as tidy awaits the Ephemerals aboard the ship.