On a planet in a distant galaxy, a power hungry Leprechaun (Warwick Davis), holds a beautiful alien princess (Rebekah Carlton), hostage in order to marry her for her royalty title. With her title and his beloved gold, he'll be able to rule the universe. While making his manical plans, what he doesn't count on is an invading platoon of marines from Earth, to save the princess and foil his plans. An accomplished trickster, the Leprechaun stows himself awy on the orbiting spaceship and wreaks havoc on the crew in an attempt to recapture his bride.