When the head of a powerful Taiwanese triad is shot by a mysterious assassin, his eldest son, Charles (Justin Chien) heads to Los Angeles to protect his mother, Eileen (Michelle Yeoh), and his naive younger brother, Bruce (Sam Song Li) — who’s been completely sheltered from the truth of his family until now.
But as Taipei’s deadliest societies and a new rising faction go head-to-head for dominance — Charles and Bruce must figure out what brotherhood and family truly means before someone takes them out.