After David Matthews had recovered from being a boxer, he looked for the next challenge. He decided to take on the world of greyhound racing by becoming an owner and seeing if he could make a success of it. In doing so, he got to meet many of the extraordinary characters that give the sport such an enormous appeal, he learned about the tricks of the trade and got to meet some very dodgy characters round Walthamstow way. This is the story of one man and his dog and how they learned to race together.