Once upon a time in south London, three young men without a future decide to invent their own. The sixties are starting to swing and Jimmy, John, and Billy want it all: the clothes, the pills, the music, and the women. Through drugs, protection, and armed robbery, they start building their crime empire; everything they've always dreamed about is within their grasp. But then Billy changes sides and becomes a cop—and finds that his days are numbered. Now, decades later, Billy's son, Mark, is working for John Jenner and waiting for the day when his father's killer gets out of prison. It's any time now and Mark is determined to be there when the doors swing open.
