游游的第一个寒假到了，爸爸要带他晨练，他却向爸爸提出了一个不可思议的要求，想买一条和女生蒋怡飞一模一样的紧身热裤，并因此上演了一系列令人捧腹的闹剧。男孩子为什么要穿热裤呢？游游说，这是他的一级机密，概不外传。(Yoyo begins his first winter vacation. His father plans to take him to do morning exercise but Yoyo makes an unexpected request: he wants close-fitting hot pants that his classmate Jiang Fei has, which is the beginning of a sidesplitting farce.Why does a boy needs hot pants?Yoyo says it is his top secret which he will guard with his life.)