在大海的一个角落里住着一群小鱼，大家都是红色的，只有一条是黑色的。有一天，一只凶猛的金枪鱼吃掉了所有的小红鱼，只有小黑鱼逃走了。
小黑鱼孤身一人在海里游荡，遇到了很多稀奇古怪的生命，渐渐又高兴起来。直到一天，他又遇到的一群躲在礁石后的小红鱼，为了生存，为了不用再躲避，他想了个好办法，他教小鱼游成大鱼的样子，而自己来当眼睛！
就这样，他们在清凉的早晨游，把大鱼都吓跑了。
Deep in the sea there lives a happy school of little fish. Their watery world is full of wonders, but there is also danger, and the little fish are afraid to come out of hiding... until Swimmy comes along. Swimmy shows his friends how—with ingenuity and team work—they can overcome any danger. With its graceful text and stunning artwork, this Caldecott Honor Book deserves a place on every child’s shelf.
