Sir Lionel Frost (Hugh) considers himself the world's foremost investigator of myths and monsters. In order to gain recognition from the elite explorers, he travels to the Pacific Northwest of the United States to prove the existence of a legendary creature, Mr. Link (Zach), the missing link between primitive and modern humans. Then Frost, Link and explorer Adelina Fortnight (Zoe) embark on an adventure to find Link's distant relatives.