by Simon Guerrier
An experimental timeship smashes into the TARDIS, and the crews of both ships wake up on a desert island. Has the TARDIS been destroyed? And why doesn’t the Doctor want to escape?
Then, Steven and Sara find themselves on the wrong side of the Berlin Wall in 1966. And their only way back to the TARDIS is to betray the Doctor.
Part One: 'The Island'
Part Two: 'The Door'
Part Three: 'The Wall'
Part Four: 'The Betrayer'
Jean Marsh (Sara Kingdom), Peter Purves (Steven Taylor)
Directed by Ken Bentley
*Featuring the First Doctor, Steven and Sara Kingdom
*A Big Finish Audio Production
*Time-placing: this story takes place during episode 7 of 'The Daleks' Masterplan'