Beakman explains how levers make work easier by lifting a large rock that landed on a see-saw. He then explains the 3 different classes of levers and gives examples and shows what makes each one a different lever.
Bill climbs down a firepole and wants to get back up. He uses simple machines such as ramps and levers to spread out the work and make it easier to get back up. Also, Bill explains that we use ramps every day in the form of stairways.
Phil tells Mike a story of how he, Cro, and others used levers and catapults to save the lives of Bobb and Steamer when they get trapped by a earthquake to inspire Mike to have better aim when throwing paper baskets.