一個力爭上游的小混混－小魚（柯震東 飾）遇上一個不肯放棄的小青農－陳芝平（李心潔 飾），這不僅是農田的問題，也是一個要麵包還是要愛情的選擇題…

《鳄鱼》描述1个小人物力争上游，却在麵包与爱情的十字路口徬徨挣扎，当目标确认出现时，便发挥鳄鱼般的特性，咬住机会不放。

自稱是「鱷魚」的小魚，年少時為了捱義氣而坐監，出獄後在大佬劉主任的介紹下到議員辦公室工作。某天，他以議辦職員身份，為農場負責人陳芝平處理水源問題。陳芝平因為承諾亡父會守住家族農地，所以成為區內唯一拒絕被收購的「釘子戶」。直到農地的自來水突然被切斷，獨守家園的她四處陳情，遇上傻頭傻腦的小魚，兩個來自不同世界的人，原來都是「認定目標，咬住了就不會放過」的類型。近年轉型為演技派的男神柯震東夥拍金馬影后李心潔和影帝李康生，為這部「動物系個性派愛情電影」帶來不少驚喜。

Ko Chen-tung (You Are the Apple of My Eye, Road to Mandalay) and Angelica Lee (The Eye, The Garden of Evening Mists) make an unusual romantic pairing in this offbeat romantic comedy from director-cinematographer Chen Ta-pu. Ko plays Croc, a young gangster who goes back to work for his former boss at a city councilor’s office after his release from jail. Croc’s latest task is to deal with Ping, a headstrong farmer who adamantly refuses to give up her land for redevelopment. As Croc and Ping develop feelings for each other, Croc is determined to become a better man and hang on to his newfound happiness — even if it means defying his own mob.