李小龙（吴大(dà )维饰(shì )(⛲)）年少时始痴迷武术，拜咏春一代(dài )宗(zōng )(🛍)师叶轩（徐(xú )二牛饰）(🎹)为师。小龙挑战同学(xué )石少(shǎo )虎（吕(🎾)颂贤(🌫)饰）为师(shī )。小(xiǎo )(🌗)龙(lóng )挑(tiāo )战同学石少虎(🐿)（吕颂(sòng )贤(xián )饰）却(🛍)饮(🎡)恨(🕖)败(🕯)于(👁)半招之内，后(🛹)又与莫逆之交(jiāo )唐发（张(🥞)家辉(huī )饰(🍮)）为(🙁)救人与人(rén )(🚑)打(🐶)架，惹(rě )下大祸！因(💞)此，龙父李百川（刘家良(liáng )饰）决意(yì )送他(tā )真诚美留学。