Bookshop staff Fong Hok-Man always believes that “knowledge is power”. He tries hard to encourage his older son Fong Sum-Ming and his younger son Fong Sum-Ching to study more. Unfortunately, Ming is not good at studying at all and he quits after secondary school. On the other hand, Ching is a very smart boy and Ming works hard overseas to support Ching's further studies on computer sciences in America. The two brothers return to Hong Kong eventually and they work in the same commercial building.