Dr. Frank is a world-renowned explorer and archaeologist. After months of hacking his way through the underbrush and dealing with unwelcome and unhelpful natives, many of whom who had never seen a grey squirrel before, Dr. Frank has finally found the remains of the city of Y, lost and mostly forgotten for millennia. Unfortunately, for Dr. Frank, not only does the jungle hide the city he's sought for most of his adult life, but other horrors are lurking in the shadows as well.