The Planeteers visit Chile and see that animals have gone blind and have rashes due to the sun.

Dr. Rottenberry has a change of heart and wants to protect the ozone layer. Duke Nukem does not want people to find out how important it is to protect the ozone layer. Duke Nukem says that a few years with less ozone will create rising temperatures on the planet.

Gaia and the Planeteers tell viewers what we can do to stop the thinning of Earth's ozone layer: by reducing, reusing, and recycling materials.

The Planeteers go to a laboratory and spot animals being exposed to radiation. Dr. Rottenberry thinks he is helping the animals to be better adapted to life without the protection of the ozone layer. Linka suggests that humans should replace the things we do that cause ozone depletion, but Dr. Rottenberry says that would require the cooperation of nations all over the world.

Dr. Ciara Sivels discusses the impact of radiation and how it affects certain environments and objects that we use. For example, space satellite. Also, she discusses the importance of knowing how radiation affects these particles and how they become unstable.