This is Earth, and the lost city of Atlantis lies deep underground, its human citizens dependent for food upon a species known as the Fish People.  Unfortunately for the Doctor and his friends, the Atlanteans waste little time in offering the new arrivals up as sacrifices to their goddess Amdo!

A certain Professor Zaroff has persuaded the Atlanteans that he can raise the city once more above the waves.  But the Doctor soon realizes that Zaroff's plan is insanely dangerous: the professor's lunatic dreams of ultimate power could lead to the destruction of the entire planet.  Can the Doctor and company stop him?

Anneke Wills, who plays Polly, narrates this classic adventure - only one episode of which survives in the television archives.  In a specially recorded bonus interview, she recalls her experiences of making "The Underwater Menace in 1967.

• Episode 3 of "The Underwater Menace" still exists and is available on the Lost in Time DVD boxset.
   
• The only existing episode was also released on VHS as part of "The Missing Years" tape.

• Widely regarded as one of the worst written, designed, costumed and overacted stories in the 26 year history of the program.  Its so bad its funny!

• Several clips exist from episodes other than part 3.  This is the result of Australian censors who removed some (at the time) objectionable scenes and kept the clips for legal reasons.  Most of the clips involve Polly being prepared for an injection that will turn her into a fish person (I told you this was a silly story).

• Listen for the exuberant and over-the-top performance of Joseph Furst as Professor Zaroff.  Also listen for Peter Stephens as the high priest Lolem (he also played Cyril in "The Celestial Toymaker).  He gives some wonderful lines... "May the wrath of Amdo engulf you!" 
   

• A bonus 19 minute interview with Anneke Wills is also included at the end of the second disc.  The interview gives some great details on Anneke's time with the program and of the making of this particular story.
   

• The audio recording of this story was done by Graham Strong using home audio equipment. 
   
• Mark Ayres, of the Doctor Who Restoration Team, did extensive work on this audio release by digitally remastering these recordings.