 After Adolf Hitler & the Nazis fail to obtain the Ark of the Covenant, Hitler orders the SS and Wehrmacht to go after the cup of Christ - the Holy Grail. Indiana Jones is pressed back into action after a mining magnate s lead researcher disappears mysteriously. The lead researcher is none other than Indy s dad, the feisty Professor Henry Jones. Meeting up with Dr. Elsa Schneider in Venice, Indiana & Marcus Brody discover that a 2nd marker that reveals the location of the grail is buried in the catacombs of a converted church. Escaping from rats, fire, gunmen, and a ship s propeller, Indy discovers that his dad is being held in a castle on the German border with Austria. When he & Dr. Schneider reach the castle Indy locates his father, but Elsa proves herself a turncoat, and even worse - so is the mining magnate, Walter Donovan! After Indy & Henry escape the castle, they head to Berlin to get the map & Henry s diary that provides critical information to those who seek the Grail. Marcus, however, is kidnapped by Nazis in Iskenderun, and Indy & Henry meet up with Sallah and start their own journey toward the  Canyon of the Crescent Moon . They run into Donovan & the Nazis, and a huge fight ensues. Will Indy obtain the Grail and gain eternal life for himself & his father, giving the world a future of light, or will Adolf Hitler & the Nazis triumph and send the armies of darkness marching all over the world?