Tired of the Man with the Yellow Hat's house rules, George endeavors to build a tree house to set his own rules. George has to figure out the right way to build his tree house including obtaining the right materials and construction method.

Joan and Rollie Smith pitch the insta-mix milkshake powder to Ray, and he loves it.

Marcus visits an NYC bagel deli that is looking to expand. He offers advice on how they can reuse other food scraps to make a new product. He invests in the company and shows the husband and wife duo how to market themselves and drive up sales.

Larry learns that Mrs. Tainot is playing music to drown out the GPS voice, which never stops. He then helps her turn off the "auto-on" feature on the very complicated GPS, which has no shortage of menus, submenus, and confirmation prompts.

Beakman explains how gas is explosive and causes the combustion engine in the car to work. He uses a model engine with a side view and demonstrates what is happening with the gasoline when it explodes to move the engine parts. Beakman shows how the engine allows the wheels to turn by relating it to riding a bike. Up and down motion of the pedals is converted to turning the wheels through the chain. Same in the car with the pistons turning gears and thus the wheels.