故事紧接着上一集展开，可爱的母海豚温特如今已经成为了全美国家喻户晓的明星动物了，和小主人索亚（内森·甘宝 Nathan Gamble 饰）以及管理员卡梅伦博士（摩根·弗里曼 Morgan Freeman 饰）一起，温特在克里尔沃特海洋馆里安了家，时不时进行一场愉快的表演，收获观众们的赞美与掌声 本以为曾经的风波已经远去，美好的生活即将继续，就在这个节…

When a mother, Katherine, and daughter, Ellie, are at the most stressful of times, they can only imagine how the others problems could be more difficult. Thanks to the magic from their late fathers hourglass, their imagination becomes a reality when they switch bodies and see what its like to be the other person.