The Key to Time, the overarching story of the entire 16th season of Doctor Who has come to a close; not with a whimper but with a bang. The Doctor, Romana and K-9 collect the sixth and final piece and go up against the powers of the Black Guardian - but how does it all end?
Listen in and find out on this week's episode of Who's Who!
Show notes and links:
The Armageddon Factor (TV story) - Tardis (wikia.com)
Black Guardian - Tardis - Wikia (wikia.com)