《《百岁之好,一言为定》》报社记者沈悠然(童菲 饰)在一家黑心医院做卧底遇见给母亲治病的南山(胡夏 饰)南山病急乱投医中了医院的圈套身为记者的沈悠然要把医院的黑幕曝光出来就把医院卖给南山母亲的假药带走了南山不明真相救母心切疯狂追逐沈悠然而沈悠然的那些证据居然被一个疯子给抢走了与此同时医院派来的保镖开始疯狂追杀沈悠然沈悠然为了自己的良知拼命保护那些证据当南山明白了事情真相后他毅然和沈悠然站在一起二人齐心协力曝光了那家黑心医院两个善良的人最终收获爱的感动卖鱼大叔牙叔(葛优 饰)、海豚训练员阿乐(岳云鹏 饰)和海洋馆保安治国(杜淳 饰)因生活中的不顺聚在海洋馆喝酒大醉之后竟然把海洋馆大明星海豚“宝宝”卖到了国外为找回海豚宝宝三人辗转多地遇到各种奇人怪事发生了许多令人啼笑皆非的故事1867年李鸿章(孙海英 饰)上书清政府下令建立船政学堂由洋人讲授西洋海军知识邓世昌(陆毅 饰)前来报考得刘步蟾兄妹相助一鸣惊人1877年邓世昌送同学们赴英国皇家海军学院深造4年之后邓世昌代表朝廷迎接同学凯旋他在伦敦街头偶遇刘步蟾妹妹(龚洁 饰)并教训了挑衅的洋人毕业会上邓世昌、刘步蟾与伊东佑亨(夏雨 饰)、东乡平八郎的对话为日后两国海上交锋埋下伏笔李鸿章组建北洋水师向光绪帝(郭家铭 饰)启奏向英国定制的铁甲舰得到了慈禧太后(吕丽萍 饰)准奏与此同时日本天皇号召朝野捐俸也购得了铁甲舰伊藤博文还奉上了侵略的奏章北洋水师提督丁汝昌(杨立新 饰)率刘步蟾、邓世昌等 “镇远”号、“致远”号将士出访日本遭遇长崎事件大战一触即发……While policeman Shen Mengxing escorted the prisoner Liu Daniu to the provincial jail, they were kidnapped by the female robbers, Yu Niang and Xue Die, from Longmen Mountain in Longmen County. The two were captured to the mountain and became members of the cottage. The new cottage was renamed \"Longmen Cottage\". Yu Niang is the master, Shen Mengxing is the second master, and Liu Daniu is the third master. Then Yu Niang arranged Shen Mengxing and Daniu to go out and invite Lu Linxiao, a teacher at Longmen College, to come to the cottage as a consultant. Everyone worked together in order to make the business much better, but they wrongly used all kinds of bad methods, which led to many misunderstandings and a series of hilarious embarrassments. Once Lu Linxiao asked Daniu to help bring a letter to his father, and Daniu rescued a fisherman's daughter, Wan Er, on the way to Lu's residence. After listening to Wan Er's experiences, everyone in the cottage was filled with anger and motivation and determined to help Wan Er fight against the evil county forces headed by County Magistrate Mu....