“唐老大”多姆·托莱多（范·迪塞尔 饰）与莱蒂（米歇尔·罗德里格兹 饰）和他的儿子小布莱恩，过上了远离纷扰的平静生活。然而他们也知道，安宁之下总潜藏着危机。这一次，为了保护他所爱的人，唐老大不得不直面过去。他和伙伴们面临的是一场足以引起世界动荡的阴谋，以及一个前所未遇的一流杀手和高能车手。而这个名叫雅各布（约翰·塞纳 饰）的人，恰巧是多姆遗落在外的亲弟弟。
Paul Averhoff was once a great marathon runner, the gold medal winner at the 1956 Melbourne Olympics. Now over 70 and forced to live in a nursing home, Paul rejects the singing group and handicraft classes for his old running shoes and announces that he is training for the Berlin Marathon, which he intends to win.
