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 the Leprechaun to their course load.
The Leprechaun returns once again, when a group of girls unwillingly awaken him after they tear down a cabin so that they can build a new sorority house.