When eight-year-old Tistou is sent home from school his parents decide he shall learn from real life instead, and where better to start than gardening? With Moustache the dreamy gardener, Tistou discovers a remarkable gift - that he has green thumbs! Everything he touches sprouts beautiful plants. Now Tistou has lots to do. With the power of flowers he can change everything: prisons, slums, hospitals - even war.