The universe stands on the brink of a dimensional crisis - and the Doctor and Raine are pulled into the very epicentre of it. Meanwhile, on Earth, UNIT scientific advisor Dr Elizabeth Klein and an incarnation of the Doctor she's never encountered before are tested to the limit by a series of bizarre, alien invasions. At the heart of it all is a terrible secret, almost as old as the Time Lords themselves.
"A Fun Adventure"
The Lost Stories: adventures that were originally written for the Doctor Who television series but never made. Now available to hear for the first time. The Doctor and Peri visit the planet Targos Delta to check in on old friend Professor Albrecht Thompson, only to discover that he has vanished. He was last sighted taking a shuttle to the holiday resort of Paradise 5, then never seen again. The Doctor's curiosity is piqued.