Niila's mother and father are divorced and Niilas has lived with his dad in Belgium as long as he can remember. However, his mom lives in Lapland. This summer, his parents decided that Niilas should visit his mother and her new family. He did not like that idea at all, but they did not care. Isolating himself, Niila longs to go back home, but when the reindeers are to be labeled, everyone has to help out and he has to leave his longing aside. When a calf escapes, Niilas is taken into the hunt and it turns out that this summer contains the greatest adventure in his life.