The weather's gone weird. The polar bears are anxious. Ghastly Global Warming is here. But don't panic. Help is at hand. Someone's about to save the planet and guess what? It's you! You are going to make the culprits behave. But who are they, these planet-wreckers? You? Your friends? No! It's grown-ups - the Groans - and they're about to get a nasty shock! We'll help you draw up a Glorious Green Charter for them to sign, and show you how to punish them - oh yes - if they don't change their Grumbelicious ways. It's time to turn those parents Green!