Ethan and Emily's lemonade stand is being exploited due to a new kids club law. Grandma Gabby takes them back in time to visit Frédéric Bastiat and the Wild West to learn about their rights to life, liberty, and property.
Grandma takes the twins to India and a worm battlefield to learn about the golden rule before it's too late. By learning about the golden rule of fiscal policy, the twins are able to save Emily's dreams.
Argh. The twins encounter space pirates, a Scotsman, and ice cream people as they learn about free trade and why no one can make a pencil by themselves.
With the help of Ben Franklin, the Twins learn what it means to be an entrepreneur and start their own corndog stand. By learning about entrepreneurship, the twins are able to grow a business.
The Twins learn that big businesses like Big Bob's BBQ can sometimes produce laws that keep smaller businesses like Food Trucks from being able to survive. They visit Atlantis and try to stop protectionism there before things get too wet.