Investigates several well-known accounts of alien abduction as well as theories aimed at explaining why such reports cannot be true.

Introduces such "monsters" as the Yeti, zombies, and the Loch Ness monster, debunking many of these fantastic stories.

Discusses how the germ theory of disease came about, how it was applied to various illnesses throughout the years, and why this theory has become so important in the field of medicine.