The Doctor is trapped, alone, powerless and terrified, on the diamond planet Midnight. Soon, the knocking on the wall begins.
Only a woman called Sky seems to know the truth - but as paranoia turns into a witch-hunt, Sky turns the Doctor's greatest strengths against him, and a sacrifice must be made...
EPISODE REVIEW - PENDING
Things to look out for...
DOCTOR WHO FOLKLORE
PRODUCTION NOTES This a "Donna-lite" episode. Primarily, Tate was filming TURN LEFT. In this story, Donna is "sunbathing" elsewhere on planet Midnight.