本剧描写成龙和他11岁的侄女小玉历险于世界各地的故事。在片中,成龙的职责是赶在黑帮之前找到12个魔力符咒。在寻找符咒的过程中,成龙意外发现每个符咒都代表着中国的十二生肖之一,每个符咒又都能赋予持有者一种独特且神秘的力量,它们一旦被黑帮联合起来,就会释放出“终极黑暗”,成为淆乱整个社会的元凶。Jackie Chan, an amateur archelogist, would prefer to quietly do his work for the local university, but fate has dealt another hand. That happens when he finds a shield containing a talisman is but the first of a dozen pursued by a criminal organization called The Dark Hand led a man called Valmont and guided by a spirit called Shendu. Against this Jackie, his niece Jade, and their uncle must cooperate with the secret law enforcement organization, Section 13, to oppose this threat. Along the way, our heroes must face wild dangers that will demand all of Jackie's skill in martial arts and his daring to overcome.