Sir Lionel Frost has been doggedly pursuing countless mythical creatures in an attempt to join a society of great men led by his rival, Lord Piggot-Dunceby. His last attempt at discovering the Loch Ness Monster resulted in a resounding failure, for his camera was shattered by the creature. With nothing to show for their endeavor and nearly having been eaten by the monster, Frost’s investigative partner quits. While considering his next course of action, Frost discovers a letter from somebody claiming they have irrefutable proof of Sasquatch’s existence, asking him to come to the state of Washington. He then makes a deal with Piggot-Dunceby that would allow him to join the society if he can prove the creature is real.