How does nuclear energy work? Is radiation a risk? Find out the difference between nuclear fission and fusion, how uranium fuels the process, and the pros and cons of this alternative energy source.

Smithers shows a clip about nuclear energy to the Springfield Elementary School during their plant field trip. The clip explains what nuclear energy is and describes the misconceptions associated with it.

Hank answers one of the world's most asked questions, What is Energy?. He also goes in to depth about the different types of energy and how they differ.

The Fossil Fuel Four attacks a nuclear powerplant, and Radioactive Man steps in to stop them. This clip depicts the popular sources of energy that exist today: fossil fuels, nuclear, solar, and wind.