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.
You can now watch The Mystery Beneath online on the following streaming providers in the United States.
| Directing | Magnus Egler | Director |
| Production | Magnus Egler | Producer |
| Editing | Alexander Engstrom | Editor |
| Editing | Nils Larsson | Editor |
