The group is concerned about global and environmental issues. They want to take action, but must find a base to work from. Meanwhile, off the coast of Brittany, a new environmental disaster is occurring...

Maestro listens as the kids tell him about all the things they see going wrong in the world, their fears, and their frustration that so little is being done. He wants to know if they have any solutions.

Maestro shows what can happen at conferences on the environment, where the blame is passed from person to person and little is resolved. But he also sees the necessity of paying attention to such issues, and encourages the kids to continue with their own plans to promote change.

Traveling aboard the flying globe that Maestro himself has invented, the young environmentalists set out to see the situation in other parts of the world up close.

Maestro takes the kids across the world to show them what is being done to deal with the worst issues related to waste and pollution.

The kids are frustrated with how slow things seem to be progressing, but Maestro boosts their enthusiasm with some good news: Their search for a workspace is over, and a new environmental movement is born — The Guardians of the Planet!

It’s very warm for November, and the kids are playing outside. They’re convinced that the greenhouse effect is responsible for the unusual weather, and think it could make a good subject for the next issue of their newspaper.

Maestro speaks about the Earth’s atmosphere, and explains how the greenhouse effect is changing the planet’s ability to regulate its own temperature. The kids want to know what is being done about the problem, and what the outcome might be.

The Gulf Stream plays a big part in maintaining the temperatures we are used to, and Maestro explains that if it is interrupted, parts of the world could become colder as an unexpected result of global warming.

When a message arrives from an Inuit correspondent, a small team sets off to investigate the environmental changes that threaten the delicate balance of life in the frozen north.

Debbie takes the young reporters along on a hunting trip and shows them one of the last remaining areas for wildlife. We hear more about the strain that a changing climate is placing on these remote and traditional communities.

The group makes a plan to spread word of the Inuit's plight, but there's already a tense situation building, as hungry polar bears enter the village in search of food.