The main reason that Steven Spielberg made Indiana Jones and the Last Crusade was "to apologize for the second one". I don't blame him; Indiana Jones and the Temple of Doom was pushing it for violence. Last Crusade, however, didn't.
Indiana Jones (Harrison Ford) discovers the history of a biblical artifact called "the Holy Grail". He is also informed that his father Henry Jones (Sean Connery), who was also looking for the Holy Grail, is missing. Indy has to find his father. However, he will become involved in the search of the Holy Grail along with his father, as well as fighting the Nazis to reach it.
There's something on the levels of awesome and brilliance with the casting of Connery as Indy's dad. I mean, you got the original James Bond, for crying out loud. Anyway, back to what I was saying. Last Crusade has the same amount of action Raiders of the Lost Ark has and none of the violence Temple of Doom has. I'm sure you're of the "threequel curse" (notable entries include The Godfather Part III and Spider-Man 3). Thankfully, Last Crusade doesn't fall victim to it.
My Rating: ****1/2