Now available for streaming or downloading on VOLTA Video on Demand – www.volta.ie/films/knuckle. An epic 12-year trip to the world of an Irish travelers' community, where KNUCKLE leads us into their brutal, mysterious and exciting naked battles. During a history of violent conflicts between rival families, the story focuses on two brothers as they fight for their reputation and the honor of their family name. Brutal, yet fascinating and ultimately moving, this unforgettable documentary offers an exclusive insight into the world of Irish travelers and the length they will go to protect their family name. .