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Currently you are able to watch "The Mystery Beneath" streaming on IndieFlix or for free with ads on VUDU Free. It is also possible to rent "The Mystery Beneath" on Amazon Video, Vudu, Apple TV, Google Play Movies, YouTube online and to download it on Apple TV, Amazon Video, Vudu, Google Play Movies, YouTube.
A group of treasure hunters discover a mysterious object at the bottom of the Baltic Sea in this documentary. Theories abound about the large object's origins. It might be a UFO, manmade, or it might be a naturally occurring phenomenon. Nobody knows.