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.

Hank talks about how scientists may have found the missing link, a gene, that can give them more insight in to how plants went from living in the ocean to moving on to land.

Beakman explains amoebas and provides some interesting facts about them. He also explains how they use fission to reproduce.

There are many different kinds of germs- they can be split up into the "good" and "bad" categories. The good germs are there to protect the body from the bad germs.

Drug resistant bacteria or superbugs are bacteria that have become resistant to antibiotics. This clip discusses how superbugs form and scientists are trying to find ways to fight off these super bugs.