The Planeteers have three days to prove that Looten Plunder is cutting down old growth forests. The Planeteers call Captain Planet for Wheeler, who has fallen into a river. Later the Planeteers lose the battle with Looten Plunder.
The Planeteers visit India. All of them get sick except for Wheeler. He investigates the sickness in the city with the help of an Indian woman named Lita.
After saving a rich man's life in a boat storm, Senior Cisneros persuades the Planeteers to a stay at his luxurious hotel. Ma-Ti gets mistaken for a local riffraff by the hotel's police. So Ma-Ti leaves the others and visits the poor community.
The Planeteers are trapped in a terrible blizzard up on Mount Everest. Their guide a snow leopard named 'Heather' leads them into a cavern hat turns out to be a courtroom. The Planeteers are being prosecuted as criminals.
The Planeteers are off to meet Milton who shows them all his work in preserving the endangered Mississippi River. Wheeler and Ma-ti don't want a guided tour. They want to experience the Mississippi like Huck Finn and Tom Sawyer.