Doctor Who - Synopsis For Doctor Who: Trial of the Valeyard

 

Big Finish is releasing a special release that is free to subscribers but will be on sale for everyone else sometime in December.  This freebie is a story that pits the 6th Doctor against his darker self The Valeyard. You ca order it from the Big Finish website if you are not a subscriber who will be lucky enough to get this release for free.
http://www.bigfinish.com/releases/v/trial-of-the-valeyard-929

Synopsis

There is some evil in all of us – even the Doctor. Transported aboard the Time Lords' orbiting courtroom, the Doctor once again encounters the Valeyard, an amalgamation of the darker sides of his nature. This time, however, the Doctor isn't in the dock. This time, the Valeyard is the defendant, accused of a crime so terrible that the presiding Inquisitor is forbidden to reveal it even to the court, nor even to his counsel for the defence… the Doctor.

If the Valeyard is found guilty, he'll be executed. Execute the Valeyard, and the secret of his origins dies with him. A secret that the Doctor is desperate to know… and which the Time Lords will stop at nothing to protect.

Written By: Alan Barnes and Mike Maddox
Directed By: Barnaby Edwards

Cast
Colin Baker (The Doctor), Michael Jayston (The Valeyard), Lynda Bellingham (The Inquisitor)