In the heart of 1945 Ireland, Indiana Jones and his father, Doctor Henry Jones, discover a terrible secret that could destroy all of civilization. The Spear of Destiny -- which pierced the side of Christ Himself -- has been captured by Nazi spies and will be subjugated to their evil desires if they find the tree rooted from the original thorn. In the hands of one man, the spear killed Christ. In the hands of the Nazis, it would destroy the world. Only the Joneses stand between them and total world domination.