胡狗蛋（胡瓜 饰）和阿妹（蓝心湄 饰）是从小玩到大的青梅竹马，虽然他们都出生在功夫世家，但两家人之间的关系却势同水火。早年间，胡狗蛋的母亲和阿妹的父亲离开了家，如今，两人被家人撺掇着，结伴进城寻找父母。 巧合的是，两人的父母如今已经结为了夫妻，共同经营着一家体育用品店，早年间，这间商店的营业额十分的可观，可近日来，由于日本公司“一番”的不断挑衅和骚扰，商店的生意每况愈下。看到父母焦头烂额的样子，胡狗蛋和阿妹决定留在他们身边，帮助他们渡过难关。然而，他们并不知道的是，狡猾的一番公司正在筹划一个邪恶的阴谋。

The history begins in a small small village. The son lives with the father, and the daughter with mother, their parents constantly are at enmity and clash, bringing the matter to fights. Young people love each other, but their parents aren't happy with it and suggest them to go to the city to find to itself soulmates and it isn't simple to find halves, but also to be enriched with a money, and together with it to find the run-away parents. Searches are vain, they only find adventures on the fifth point and are got involved in fight with local бандюгами then them put in a monkey house. By accident they are found by the run-away parents, but problems becomes even more. Any yaposhka snub sporting goods store of their parents, causing them on any foolish competitions which also win and thus doing of their parents of full suckers...