Cork the muskrat tries to persuade his best friend Fuzz, a possum, to help babysit for a porcupine.

Cork the muskrat wants his best friend Fuzz, a possum, to visit his home, but first he must teach Fuzz to swim and not be afraid of the water.

When best friends Cork and Fuzz go to the pond to collect shiny stones, they happen upon a duck's nest just as the eggs are hatching and Fuzz, who is wearing a feather from his collection, is collected by the mother duck.

Short-legged Cork is upset when tall Fuzz wins every game they play, until he learns that their friendship is more important than winning.