李小(🕕)龙（吴大维饰）年少时(shí )始(📒)痴迷武术，拜(🃏)咏春(chūn )(😘)一代宗师叶(🕰)轩（徐二牛饰）为师。小(xiǎo )龙(lóng )(🌰)挑战同学石少虎（吕颂贤(xián )饰）为师。小龙挑(♑)战(zhàn )(📼)同学石少(⚫)虎（吕(🔸)颂(👑)贤(xián )饰(🤷)）却(què )饮恨败于半(bàn )招之内，后又与莫逆(nì )之(zhī )交(🛺)唐(📞)发（张家辉饰）(✖)为(🙁)救人与(yǔ )人(rén )打(🐶)架，惹下大(🐖)祸(huò )！因此，龙父李百(🚣)川（刘家良(liáng )饰）决意送他(tā )真(zhēn )诚美留学。