John is obsessed with dominoes. But not with playing the traditional game, he is obsessed with toppling. He spends hours setting up spirals, ramps, patterns and lines of dominoes all for that satisfying toppling beginning with a small push in the right direction - everything falls as it is meant to. When John's friend Dom falls sick and is diagnosed with cancer, John and his friends' worlds fall apart. Can they face Dom and support him through his illness? It's hard for all at first but John and his friends find a way to comfort Dom and laugh with him again. They even find support and understanding from an unlikely source within their class, the school bully.