UNDERSEA KINGDOM relied heavily on Lydecker's special effects to create Atlantis which is now at the bottom of the sea and currently embroiled in a violent civil war. Into this maelstrom venture surface world explorers -- by means of a rocket-powered submarine -- headed by daring U.S. Naval officer, Ray "Crash" Corrigan in this classic pulp science-fiction adventure heavily borrowing from Universal's FLASH GORDON classic cliffhanger serial, released that same year, 1936.
Crash Corrigan plays on Flash Gordon's reputation, of course. You can purchase this film and others in DVD format at http://captainbijou.com/