Deep Sea Sounds and Phantom Ships

S1, E5: Could a flying object caught on U.S. government cameras finally be evidence of alien technology? Is a strange sound travelling through 5,000 miles of ocean proof that the prehistoric Megaladon is still alive? And what accounts for the sighting of an apparent ghost ship floating in Lake Superior? In this episode, Tony Harris and his team examine the videos and render a verdict on these mysterious happenings.