To most of us, the Loch Ness Monster is little more than a fairy tale, a product of overactive imaginations and the Scottish tourist industry. Not so for the thousands of local residents who've reported seeing a mysterious animal in the loch, nor for the generations of investigators and scientists who've used the latest technology to probe the cold, murky depths of Britain's largest lake.Twenty-five years ago, MIT-trained investigators Bob Rines and Charlie Wyckoff used side sonar and strobe photography to produce the most intriguing evidence yet for the monster's existence. Now, disappointed by the lack of follow-up by professional scientists, they return to Scotland for one last go at "Nessie." Join NOVA as it follows this latest expedition and conducts its own investigation into a mystery that has fascinated millions for more than 60 years. As Rines and Wyckoff scour the loch with today's sophisticated sonar, scientists explore the loch's ecosystem and geological history for clues, and the most famous photo of Nessie is put to the test, with surprising results. Decide for yourself: Is Nessie an optical illusion, a fantastic hoax - or a species undiscovered by science?This product is manufactured on demand using DVD-R recordable media. Amazon.com's standard return policy will apply.