A young man from a wealthy family goes on a trip around the world as a sailor - such a strange diploma practice. In the Bermuda Triangle area, the research vessel falls into one of the mysterious phenomena of this zone and Gregory falls overboard, flying into another world, recovering on a strange ship, more like a submarine. Around the ocean, the ship itself is sailing somewhere, and in addition, someone is trying to talk to it all the time - someone invisible and speaking in an incomprehensible language...