Take one toy submarine, add some fishing line to the top of it and have it "explore" your aquarium. This is sadly the extent of the action in this C- movie. It is a huge waste of the talented actors and was an even larger waste of my time in watching it.
I have no problem with campy movies, and this was the reason I watched this flick, but Jason and the Argonauts this ain't. Very slow pacing along with the aforementioned "action" scene(s) make this one of the worse films I have watched. Save yourself an hour and a half and clean your house instead, it will be more rewarding and you'll even have a cleaner house to show for your time.