George is determined to save the world by lunchtime, but he's not quite sure how. Grandpa suggests they start by recycling the yoghurt pot from his breakfast, putting his banana peel in the compost pile, and hanging the washing to dry in the sun. A bike trip to the recycling bank, charity shop and local farmers' market show how recycling and re-using materials, and using less petrol and local produce can really help save the world. George even gets a favourite toy fixed!