Raised by white parents in London, Jamaican-born orphan Cass (Nonso Anozie) uses violent aggression to propel himself to the top of a dangerous street gang. A prison sentence and a new love (Natalie Press) inspire Cass to try a new direction in life, but a would-be assassin's bullet shows him that the cycle of violence he set in motion isn't broken easily. Jon S. Baird directs this provocative drama based on a true story.