Indy travels met in the film – at first he meets with Elsa Schneider in Venice where the catacombs strayed gets a clue about where to find the Grail. Then he should Bryunvald castle where he finds his father held by the German Nazis. It turns out that Elsa – Nazi agent who kidnapped Indy’s father in a diary – a key item needed in the search for the Holy Grail.
In the end they find the temple where the Holy Grail is hidden. At the entrance they met Donovan – he needs a cup but the temple is filled with traps and he sends forth Indiana after mortally wounding Henry. Having passed all the traps and overcome all the trials Indiana produces Bowl and rescues his father.