在这部小鱼历险记动画/冒险/喜剧片中,福来（Jeff Pace 配音）是一个十三岁的小男孩，某日，调皮的他带着妹妹史黛拉（Michelle Westerson 配音）和堂兄恰克（亚伦·保尔 Aaron Paul 配音）一起溜出去玩。史黛拉在无意之中喝下了邪恶博士马琪尔（特瑞·琼斯 Terry Jones 配音）所发明的能够将人类变成海星的药物，并被不知情的福来丢进了海中，为了拯救史黛拉，福来和恰克决定喝下另一种能够将人类变成鱼的药物，一同进入大海。 就这样，福来和恰克开始了他们在浩瀚海洋之中的奇妙旅程，两个男孩只有四十八个小时，时间一过，他们将永远保持鱼的形态，再也无法回到父母的身边。与此同时，一条名叫约翰（阿伦·瑞克曼 Alan Rickman 饰）亦喝下了神奇药物，拥有了和人类无二的智慧，它组建了一支军队，想要统治整个海洋王国。©豆瓣
Siblings; Fly & Stella together with their child genius cousin Chuck Charles, encounter reclusive biologist/chemist Proffesor MacKrill/Mac Krell while out on the docks fishing only to become cut off by the tide coming in separating them from the shoreline. Seeking refuge, they stumble across his secluded island hideaway laboratory, to discover MacKrill/Mac Krell has found away to change humans into sea-life and back again. Stella mistaking this fish potion for lemonade drinks some and is turned into a starfish, her older brother none the wiser chucks her out into the ocean, only to learn from the video cameras the awful truth. Out searching for her in a boat guilty Fry knowing how futile this action is drinks the potion and dives in after her (changing into Californian Linefish in the process) leaving the Professor and Chuck on-board as an storm brews overhead. Unable to stand the batter waves, their craft sinks along with the antidote and Chuck has to drink the liquid to prevent himself from drowning (ending up as a jellyfish), with MacKrill/Mac Krell warning that unless they drink the antidote in within 48 hours they'll be stuck as fish forever. Now these three find themselves stranded in the ocean in a desperate search to find that antidote. However on the seabed their antidote has fallen into the fins of the ruthless pilot-fish Joe...whose exposure to it has increased his intellect, making him power-mad with no intention of letting this stroke of fortune desert him.
纯粹为了Alan的声音……。
