Wee Meghan and Sean O`Sullivan persuade Auntie Moira, Auntie Bridget, and Auntie Kathleen to help them try to catch a leprechaun for St. Patrick`s Day in this ambling adventure. `Tis not an easy thing, to catch a leprechaun. They can be quite tricky, as Meghan and Sean soon find out. Lucky O`Leprechaun, who has pestered the O`Sullivans for centuries, is trickier than most. However, Meghan and Sean soon devise so clever a plan that it would make even the shrewdest of leprechauns green with envy. What will the lad and lass do if they do catch this little leprechaun? Will they ask him for his pot of gold? Or will they discover that there are some things even more precious?