The Big Question: “Why do some spiders have eight eyes?” Synopsis: How do we see? Why CAN’T we see some things? Why do cat’s eyes glow in the dark? Harrison sheds some light on one of our five most important senses: sight! He also learns that seeing more, doesn’t necessarily mean you can see well. My Great Challenge: Team Lion and Team Tiger search for camouflaged jelly beans. In the Field: Harrison visits 12-year old Tait in Calgary to learn how to have fun using your other senses, when you can’t see.