Nisse Berg is eleven years old and when we meet him the first time he lives a "life of"bad luck". His mother Sara is no longer alive. Before she died she gave Nisse a lizard, which Nisse finds boring and ugly so he names him Harry, because he looks like an old, grumpy man. But one day, Harry starts talking. He claims to be a dragon, with a dragonheart, and wonders if Nisse wants one too. The Dragonheart film is about trying to accept life as it is. About being you, growing up, and changing while the rest of the world keeps going, despite the horrible thing that has happened.