Nika is into metal, video games, and action. Lotte is super athletic, super precise, and super smart. Mangold loves to carry stuff around, has the best fashion sense, and performs the best cannonballs. The three of them live in Dackeltal, where Karl is dating the nasty Berta, Becker's fat cat feels misunderstood, a new treehouse is being built, and wild snowball fights take place in winter. Sometimes silly, sometimes thoughtful, and always filled with humor, creativity, and enthusiasm, the three friends Nika, Lotte, and Mangold face the big and small adventures in their lives. And Thomas Wellmann proves once again that he is not only a fantastic illustrator but also a great storyteller.