When Roy G. Biv, a leprechaun, appears and asks Colleen's help in saving the St. Patrick's Day parade, she offers items of different colors to rebuild his lost rainbow, but is reluctant to part with a special gift from her grandfather.

Jack and Annie travel back to nineteenth-century Ireland to inspire a young Augusta Gregory to share her love of Irish legends and folktales with the world.

When leprechauns Ari, Boo, and Col need to place the pot of gold at the end of the rainbow, they cannot help getting into mischief along the way.

Gram is ailing and Ninny Nanny, too lazy to care for their simple needs, says she will catch a leprechaun to discover his hidden gold.

Two towns, Tralee and Tralah, compete in an annual St. Patrick's Day decorating contest which Tralah boastfully always wins, but when their hearts are put to the test by a little man with pointed ears, Tralee wins with no effort at all.

When Donald O'Dell saves the life of a leprechaun but refuses his offer of gold, he finds his good deed rewarded in an unexpected fashion.

Abducted by leprechauns on her thirteenth birthday, Lilybet Green learns that there is more to her family tree--and to her bond with her late grandmother--than she ever imagined.

"When a leprechaun makes mischief at the school, the Gingerbread Man follows his clues and sets a trap to outsmart him"--

When Great-uncle Patrick tries to give his grandnieces a treasure to take with them to America, he accidentally lures a leprechaun into their suitcases--with very lucky results.

While attending a St. Patrick's Day parade, Mike, Matt, and the other young ants pursue a mischievous ant leprechaun convinced that he will bring them good luck.