After a bunch of thieves are sent out to hunt for urban legends by a wealthy man intending to open a museum full of mythical creatures. Soon, the thieves will learn the legend of a Leprechaun.

American businessman Jack Woods rents a cottage on the enchanted Emerald Isle which is occupied by a family of leprechauns. Leprechaun Seamus Muldoon's son and son's friends crash the fairies' costume ball and Muldoon's son falls in love with fairy Princess Jessica. Their love re-ignites a feud between the leprechauns and the fairies, which escalates into a war. The Grand Banshee warns of terrible consequences and Jack Woods is chosen to make peace. Woods interrupts his own romance with an Irish beauty to help, and becomes involved in a strange and wonderful magical adventure.

Twenty-five years ago, a young woman and her friends stopped an evil Leprechaun by shoving a four-leaf clover in its mouth and watching its melting body fall into a well in North Dakota. What happened to his pot of gold is anyone's guess. Today, the property is run by the AU Sorority House of a premiere Eco-science college. A group of students decide to spend their summer vacation turning the house into a perfect "green" living abode. And it would be challenging enough, without the depraved Leprechaun they unwittingly revive. Now he's back and determined to get his gold by teaching these ladies a lesson in murder. Except, they aren't having it. The women band together to find his gold and add, taking down a misogynistic Leprechaun to their course load.

It was a normal night in Las Vegas, Nevada, all the lights were flashing brightly, until a man with one hand, one eye, and one leg walks into a pawn shop with a statue of a hideous looking Leprechaun. The owner claims it's a good luck charm. The statue also wore a medallion around it's neck. The careless pawn shop owner took off the medallion setting the Leprechaun free, along with his pot of gold that everyone wants and like before, he'll kill anyone who goes near it. Driving into town that night was a young man named Scott who was off to L.A. to go to school. Along the way he meets a sarcastic, but friendly, girl named Tammy. Scott tries gambling but loses everything, so he goes to the pawn shop to pawn his Rolex watch. At the shop, he finds the dead owner and one of Leprechaun's gold coins that grants a wish to its finder. Scott wishes for a winning streak, but what he does not know is that the casino is run by a crooked man who hates to lose. Also in the casino is an ignorant and ...

On a distant planet, a power hungry Leprechaun kidnaps a Dominian princess, Princess Zarina, and plans to make himself king, but not if a bumbling brigade of space marines have anything to say about it. Their commander is a mad scientist by the name of Dr

On his 1000th birthday, a mean Leprechaun gets to choose a bride by making her sneeze three times, then she's his...only the bride he chooses is the daughter of his slave (who fouls up the wedding) so Leprechaun must wait until his 2000th birthday to claim the woman of his nightmares. The descendant of the woman he wanted to marry already has a boyfriend: a brave young boy named Cody, who lives with his swindler uncle Morty and together they run a tour company called Darkside Tours. Leprechaun soon wakes up, kills a bunch of people and kidnaps his bride to be. It's soon up to Cody to save her, and only wrought iron can destroy a Leprechaun. Morty has an idea, but it soon goes horribly wrong when he gets too greedy. Cody ventures into Leprechaun's home to save Bridget, but little does he know that a leprechaun's home has many surprises.