李红旗要办婚礼了!本想婚礼一切从简,但彪悍热心的丈母娘(林晓杰 饰)坚持做主想大操大办,李红旗不得不飞往海角,落地后却得知飞机邻座女孩昕昕(马千壹 饰)被人贩子拐走。面对凶残狡猾的犯罪团伙,李红旗与当地办案风格迥异的警察孙彪(崔志佳 饰)强强联手,在婚期逼近的倒计时中和人贩子头目秦叶蓉(黄米依 饰)及卖鱼佬(伍允龙 饰)展开殊死搏斗。婚礼筹备笑料百出,办案追凶惊心动魄——红旗不倒,正义不休假!看李红旗如何罪犯、幸福两手抓。
Three movies are being shot simultaneously and Charlie is an overworked scene shifter. The foreman is waited on hand and foot until all the shifters but Charlie go on strike. A girl looking for work pretends to be a man and helps Charlie. Charlie discovers her gender and falls in love with her. The foreman thinks they are homosexual and in the ensuing fight they become involved in a long pie throwing scene from one of the movies in production. The frustrated workers dynamite the studio.