7. Bölüm: 7. Bölüm

Bölüm Konusu

What nasty invaders live in our homes and on our bodies? Fleas, parasites, worms and every tiny, disgusting thing in between. Mark can't stop itching, but no one knows what's causing it. The Shrinking Scientists get on the case and investigate. Microscope expert Robert Hooke joins them in the studio.