Now here is a bonus episode in its entirety.
Although many early Doctor Who programs have been wiped, odd episodes do exist.
What follows now is the earliest surviving Patrick Troughton episode.
It's the only one to exist from my second story as Jamie,
The Underwater Menace.
The undersea inhabitants of Atlantis have captured the Doctor and his companions.
Whilst Polly has escaped being transformed into a fish, the Doctor has realised
that the mad scientist, Professor Zaroff, has a plan to destroy the world.
Can the Doctor defeat the Underwater Menace?