- Indy and Marcus Brody meet up with a Dr. Elsa Schneider in Venice, Indiana & Marcus discover that a 2nd marker that reveals the location of the grail is buried in the catacombs of a converted church; All while escaping from rats (Italian rats at that), fire (more like an explosion), gunmen (maybe it’s just a misunderstanding), and a ship’s propeller.
- Indy discovers that his dad is being held in a castle on the German border with Austria. Indy and his dad escape on German motor bikes (but not before setting the castle on fire course) .
- Indy and his father got to the Berlin to escape. Indy books tickets aboard a dirigible (yeah those are reliable). However, they are forced to leave the dirigible using the search plane attached underneath. They are chased by Luftwaffe fighters and are forced to land. (Indy’s father shoots the tail off their ownplane with it’s machine gun!)
- Indy and Henry rendezvous with Indy’s pal Sallah, they learn that Marcus, whom Indy had given a map leading to the Grail, was captured by Nazis (and their greasy paws). They Track them down; Indy, Henry, and Sallah see Marcus is escorted by a company of Nazi troopers with a World War I-vintage tank (like the Nazis don’t have better tanks or something). Indy pursues the tank and a prolonged fight ensues where Marcus and Henry have been captured. Indy rescues the two of them, but the tank drives off a sheer cliff.
- The four men soon track down Donovan’s remaining group at a cliff side temple. The traps within have already killed several of Donovan’s group, and when Indy and his pals are seized, Donovan shoots Henry (typical Nazi move, shoot the Jewish actor), leaving the healing power of the Grail as the only chance to save Henry’s life. Indy thus enters the dangerous pathway, deducing how to avoid its traps and finding the chamber of the Grail. He succeeds in reaching the grail chamber and must choose the correct grail from many false ones.
- Donovan and Elsa enter, and Elsa chooses a cup for Donovan. Donovan ultimately ages to death for drinking from the wrong grail (crypt keeper status)
Indy then picks the true grail, drinks from it proving it to be the true one and uses it to heal Henry’s wound.