Martial arts action film from director Stephn Fung about Teddy (Anthony Wong Chau-Sang), a former secret agent turned chiropractor, struggling to raise his children alone after the death of his wife. He tells stories of his glory days while teaching his children martial arts but they find his tales from the past embarrasing. However, unknown to his children, Teddy still works undercover protecting retired agents and when an evil enemy re-appears and kidnaps him to settle an old score it is up to the children to put their martial arts training into action to get their father back.