The film is adapted from Chinese classic comic series Mr Wong, with Tang Bik-wan joining hands with the magnificent Sun Ma Si-tsang and Tam Lan-hing to give a dazzling performance. Wong (Sun Ma Si-tsang) passes off as the company's manager to pursue the beauty Hui (Tang Bik-wan) behind his fearsome wife's (Tam Lan-hing) back. Unbeknown to him, Hui is actually the fiancée of his nephew (Sima Wah-lung), to whom he has refused to lend money. Scenes in which Hui plays pranks on him and tricks him into providing funds for her are spiced up by the lively acting of Sun Ma as a wife-fearing perv and Tang as a sassy girl with a sharp tongue. The film ends with Wong making excuses to meet Hui at a hotel but getting caught by his feisty wife. Whilst both are acclaimed comedians in their own right, brassy Tam and composed Tang together pull Sun Ma's leg in an unmissable classic slapstick.

Mr Wong falls head over heels for Lan, a beautiful waitress. He bugs her constantly to ask for her hand, and even goes as far as lying about his wife being dead and secretly planing to marry his wife off to a friend. Lan decides to play a prank on him to teach him a lesson.

Upon becoming Prince Regent, the bellicose Lord Biu of Wu sends commander-general Si Ching-wan to rage wars between the Zhao and Chen Kingdoms. A small state that is long on literary excellence but short on military might, Chen is defenceless against the invading forces. The compassionate general answers the pleading of the Chen princess, Fung-ming, to sign a treaty of peace. In his speech to the lord, Deputy General Lau Mo-yeung accuses Si of treason so as to lay claim to Chen. The lord dispatches the valiant fighter Lui Chen-sing to Chen on an assassination mission, but the assassin is vanquished. Si prevails on Lui of his patriotism. Lord Biu fights Chen. In a dire attempt to redeem Chen, Si surrenders to the Wu camp. Lui pretends to have blinded Si to extricate him. The duo ally with a band of chivalrous fighters to overturn the corrupt regime. Dispossessed of his throne, Biu commits suicide. Si returns to his land to serve as an aide to the young king and marry Fung-ming.

First in a two-part Hong Kong film based on Louis Cha's novel "Sword Stained with Royal Blood."