Beakman explains what a microscope does and then dresses up like Zacharias Janssen, the compound microscope inventor. He shows how Leewenhoek basically created a magnifying glass but Janssen expanded upon it by adding the second lense to make a compound microscope. Beakman then shows a variety of slide samples under the microscope and explains it's an important scientific tool.
Beakman explains that shoes stink because of the bacteria on your feet. He uses a microscope to quickly show that there are bacteria everywhere and then a short animated clip to show how your feet produce oil and sweat that the bacteria eat. This creates smelly biproducts to make your feet stink. He then does a DIY bacteria growth experiment where he grows bacteria from his sweaty feet in a jar of gelatin.
This clip takes us into the microscopic world through a series of steps, with each step being 10x smaller than the previous. It illustrates the microorganisms that exist in drop of water and the components of those organisms, including DNA and atoms.