In this kung-fu action film, a Tibetan Buddhist monk (Chow Yun-Fat) has guarded a scroll containing the secret of ultimate power for 60 years. Armed with super-human reflexes, masterful kung fu and a propensity for defying gravity, the bulletproof monk now seeks a replacement for himself. When he discovers Kar (Seann William Scott), a deadbeat pickpocket and self-trained street fighter, the monk begins to wonder if he may have found a worthy trainee. The monk befriends him, watching to see if he fulfills prophecies as they join forces to battle the dark powers who pursue the secrets of the scroll. Meanwhile, Kar falls for the beautiful and tough Jade (Jamie King) who proves to be a valuable asset in their battles.