Na infância ele foi treinado por um estranho mestre vagabundo, que o inicia nas artes marciais. Adulto, se vê obrigado a usar toda sua habilidade para enfrentar a máfia que controla a população local. Jackie Chan participa de incríveis lutas com capangas, até enfrentar o grande mestre criminoso num combate que só terminará com a morte de um deles.
Fat Kau (Leung Sing-por) and his wife (Ma Siu-ying) are not on the best terms with their fierce daughter-in-law Tang (Tam Lan-hing). It is their secret wish that their grandson Kim-kwong (Yam Kim-fai) would marry an ill-tempered woman—it would be, Kau and Lee think, poetic justice for Tang to have a taste of her own medicine. But to their disappointment, the granddaughter-in-law Yu-chu (Law Yim-hing) turns out to be meek and understanding. Kau and his wife therefore tricks Yu-chu into starting a quarrel with Tang. Rich in intricate details of everyday life, the film depicts a witty battle between vivid characters, and is a comedic portrayal of the relationship between mother and daughter-in-law through three generations.
