MAN YAT LONG (Freeman) is transferred back to Hong Kong from his US headquarters. His family members include his parents, CHIU KIT and MEI SIN, two brothers, RAY and CHING, and most important of all his grandpa, MAN TAI LOI, who is a school principal and in charge of everything at home. After being bullied on purpose by his new boss Miss SZE, FREEMAN hurries to meet LOI for lunch and meets Miss SZE again on the street. Actually, Miss SZE is an old student of LOI and she intentionally ridicules FREEMAN in the presence of LOI, who talks back for FREEMAN. KIT works in the Food and Environment Hygiene Department. Following instruction, he goes and takes action against an illegal abattoir, the owner of which, PORKY WING, wields a chopper to him. KIT repairs the air-conditioner for LOI on his...