Episodes one and four of The Underwater Menace are missing from the BBC Archives. Episode three has been released on the Lost in Time DVD, whilst episode two remains unreleased.  For the purposes of this marathon I watched episodes one, two and four using Loose Cannon’s reconstructions, and episode three on the Lost in Time DVD. Episode two part two of Loose Cannon’s reconstructions is presently unavailable on YouTube. In lieu I watched an animated version uploaded by doctorwhoanimator.

Loose Cannon’s The Underwater Menace, Episode 1 Part 1

Loose Cannon’s The Underwater Menace, Episode 1 Part 2

Loose Cannon’s The Underwater Menace, Episode 2 Part 1

Doctorwhoanimator’s The Underwater Menace, Episode 2 Part 2

Loose Cannon’s The Underwater Menace, Episode 4 Part 1

Loose Cannon’s The Underwater Menace, Episode 4 Part 1