Seeing a four-leaf clover at a show-and-share, Fancy Nancy becomes superstitious and goes overboard trying to keep track of everything that is lucky and unlucky before deciding to settle on what she truly believes.
When Serendipity finds a four-leaf clover, she shares her good luck with all her pony friends. When the clover disappears, the ponies learn they are already very lucky ponies because they have each other.