Linny the guinea pig, turtle Tuck, Ming-Ming duckling and the rest of the Wonder Pets classmates turn their rescue efforts to the animal inhabitants of many of our most cherished and beloved nursery rhymes. Join the trio as they lend a hand first to one itsy-bitsy spider who's continually washed away by a pesky water spout, then to a well-known cow who will need a little help if she's ever going to jump over the moon.