Based on the book The Club Dumas, written by Arturo Perez-Reverte. Dean Corso, a somewhat sleazy rare book dealer, is hired by a mysterious patron who has just come into possession of one of the only three copies of The Nine Gates of the Kingdom of Shadows (a 17th century occult text said to give its owner unimaginable power). The man hires Corso to track down the other two copies and compare them to his, but complications - both natural and supernatural - arise at every turn.

1327: after a mysterious death in a Benedictine Abbey, the monks are convinced that the apocalypse is coming. With the Abbey to play host to a council on the Franciscan’s Order’s belief that the Church should rid itself of wealth, William of Baskerville, a respected Franciscan monk, is asked to assist in determining the cause of the untimely death. Alas, more deaths occur as the investigation draws closer to uncovering the secret the Abbey wants hidden, and there is finally no stopping the Holy Inquisition from taking an active hand in the process. William and his young novice must race against time to prove the innocence of the unjustly accused and avoid the wrath of Holy Inquisitor Bernardo Gui.

Renowned archeologist and expert in the occult, Dr. Indiana Jones, returns for the 3rd and final Indy film. Teaming up with his father, Indiana sets out to try and find the Holy Grail. Once again, the Nazis are after the same prize, and try to foil Indianas plans.