Moritz is wild about nature. So when his school class plants a garden, he’s over the moon. But when Dennis invites him to join his gang, Moritz’s love of the budding flower beds is put to the test. He can’t water the garden and be cool like the other boys. The thing is, it’s hot – really hot. Moritz doesn’t want to come across as a goody-goody. But should he just let the plants wither? No way! Thankfully, his best friend Juna says what she thinks and gets on with things. Together they put all their efforts into making it rain that weekend, even if it means breaking into the cellar, shading the plants in the garden and doing a rain dance on the school playground.