Abandoning his life as a judo master, Sveto Bo (Louis Koo) opens a nightclub, where he tries to replace his old passion with a thirst for alcohol and gambling. But when a new judo fighter (Aaron Kwok) arrives to challenge him and a former rival comes out of the woodwork, it's time for the old champion to brush up on his skills. Turning his nightclub into an arena, Sveto Bo takes on his opponents one by one.