Searching for the lost world of Atlantis, Prof. Aitken, his son Charles and Greg Collinson are betrayed by the crew of their expedition's ship, attracted by the fabulous treasures of Atlantis. The diving bell disabled, a deep sea monster attacks the boat. They are all dragged to the bottom of the sea where they meet the inhabitants of the lost continent, an advanced alien race that makes sailors their slaves.

Doug McClure
as Greg Collinson

Peter Gilmore
as Charles Aitken

Shane Rimmer
as Captain Daniels

Lea Brodie
as Delphine

Michael Gothard
as Atmir

Hal Galili
as Grogan

John Ratzenberger
as Fenn

Derry Power
as Jacko

Donald Bisset
as Professor Aitken

Ashley Knight
as Sandy
CinemaSerf
The third of these Kevin Connor directed science-fiction outings for Doug McClure - this time as maritime explorers looking for the lost Atlantis. Peter Gilmore adds a little gravitas to this nautical yarn, as they descend to retrieve a golden statue from the depths and end up meeting a giant squid ...
Wuchak
**_Doug McClure’s fourth and final British adventure-fantasy flick_** At the turn of the century in the Victorian Age, a British archaeologist & his son (Peter Gilmore) enlist a ship to take them to the general area of the Bermuda Islands, secretly in search of Atlantis. The designer of a state-o...