Will and Katie are sad. They have to move to a tiny terraced house. It's just Mum and the two of them now that Dad has moved out. The kids decide a little white fluffy kitten would be just the thing to cheer them up. Mum is sad too and says no to having a kitten. The children face challenges in their life, then magical things start to happen. The children try to be good for Mum but don't do a very good job of it. More magical things start to happen and soon, someone comes into their life who will change everything!