Duke Nukem unveils his latest scheme to get radiation to feed on - using CMCs to burn holes in the Ozone Layer and magnify solar radiation through a giant lens to himself.

Mathman has to identify fractions which reduce to 1/3. Can he do it?

Gaia warns the planeteers of unsafe nuclear practices that threaten the Earth and what a world polluted with nuclear radiation would look like. Gi and Linka discuss the harmful properties of nuclear radiation on human bodies.

Hank explains the Calvin Cycle, the light-independent reactions that occur within a plant to turn sunlight, water, and carbon dioxide into energy. The Calvin Cycle is broken down into three steps: Fixation, Reduction, and Regeneration.

Dwight is confident that experience is the best teacher. He simulates a real fire for his co-workers to find out if they understand what to do in the event of a fire. During the simulation, he tries to give them advice, but they are too panicked to pay attention to him.