Amidst the chaos of a collapsing Republic, Warlord Kahn Xin ruthlessly dominates a province through the opium trade, eliminating anyone who stands against him. The Wudang monks, guardians of China's spirit, bravely confront Kahn, with White Crane, a Western martial arts master, leading the charge. His path to justice turns dark when mercenaries attack their temple, killing the beloved Grandmaster Myling. Fueled by vengeance, Crane encounters Jane Marshall, a lounge singer entangled with gangster Bingo Quo, whose connections to Kahn plunge them into danger. Crane must navigate the treacherous line between seeking justice and succumbing to revenge.