Join divers, biologists and forensic sketch artists as they team up to search for "Cressie", the mysterious creature allegedly lurking at the bottom of Lake Crescent in New Foundland. Native American legends date back centuries and refer to a "Pond Devil" and a "Swimming Demon". There have been recent sightings by witnesses who describe seeing a strange oversized eel. Discover what the evidence reveals as scientists use the latest hi-tech equipment to get to the bottom of Lake Crescent.