Because you can. All three of 'em. Thanks to the good folks at Amazon Prime.
There's the FIRST ONE, Raiders of the Lost Ark, which is widely regarded as the best.
Accompanied by his feisty, independent ex-flame Marion Ravenwood, the two-fisted archaeologist embarks on a thrilling quest to locate the mystical Ark of the Covenant. Indy must discover the Ark before the Nazis do, and he has to survive poison, traps, snakes and treachery to do so.
Then, there's the SECOND ONE, Temple of Doom, regarded as the best by absolutely no one. It's super-creepy and nowhere near as fun as the first (or third), but it still has a couple of great set pieces, and one of my favorite site gags in the entire trilogy.
After barely escaping a raging Shanghai nightclub brawl, Indy crash-lands into the wilds of India where he uncovers a sinister scheme that has enslaved a remote village's children in a fortress-like mine. Indy must save the children and avoid becoming a slave himself to the evil Thuggee cult.
Lastly, the THIRD ONE, The Last Crusade, which is my personal favorite, and which I consider pretty much the perfect "kettle corn" flick: not too salty, yet not too sweet. The chemistry between Ford and Connery is simply unmatched (and a real blast to watch). Its action sequences range from such crowd-pleasing locations as the Venetian Catacombs, boats, motorcycles (and side cars) to tanks, camels, the Lost City of Petra, a zeppelin, and everything in between. And for the more musically-inclined, it features the finest -- though not the most famous -- musical moment in the entire series. (While speaking of the music, I feel compelled to point out that there's a cut entitled "Scherzo for Motorcycle and Orchestra;" that title alone is enough to earn it a point or two in my book). Oh, and it's a ton of fun. Did I mention that?
The Nazis are on the trail of the Holy Grail, and have kidnapped Indy's father. Follow Indy as he inches through the rat-filled catacombs of Venice, battles Nazi flying aces in a thrilling biplane dogfight, and braves the thunderous firepower of an unstoppable tank. And behold the Holy Grail's power to give and take life, as Indy and his father race against time.
Additionally, you can watch some 20+ episodes of the "Young Indiana Jones Chronicles" at THE SAME SITE. I've never particular cared for them, myself, because the Indy back story we get in Last Crusade always felt like enough to me. But turning the character and his adventuring environment into a TV serial certainly seems faithful to the original "vibe."
The now legendary, almost mythical character of Indiana Jones once had a childhood. Every episode starts out with the elderly man that he is in the 1990's getting into a specific situation where he has to tell a story from his past. The stories go back to when he was ten years old and on a world tour with his father, and to his late-teens when he fought in World War I
Oh, and you can watch Kingdom of the Crystal Skull OVER THERE, as well, but don't. It makes no sense, and even if it did make sense, it features a truly mind-numbing amount of Shia LaBeouf and his "acting," and it fatally undermines one of the key tenets of the trilogy: the idea that Faith in spiritual forces is real and right and actionable, and that Indiana Jones is a believer deep-down (in spite of his public scoffing and his snarky, cynical facade).
Steven Spielberg and George Lucas bring you the greatest adventurer of all time in "a nonstop thrill ride" that's packed with "sensational, awe-inspiring spectacles". Indiana Jones and the Kingdom of the Crystal Skull finds Indy trying to outrace a brilliant and beautiful agent for the mystical, all-powerful Crystal Skull of Akator.
Sadly, Patrick Schoenmaker's animated version is not yet available, because it hasn't been made. Yet. But we can keep hoping, right? (And we can keep wondering how it is that an "outsider" manages to recognize what makes the character and the series great when the original creators seem to have lost their way so dramatically.)
Famous archaeologist Dr. Indiana Jones is on a quest of a lifetime, but this time he is fully animated in this passion project by life long fan and artist Patrick Schoenmaker. Over the course of 5 years, he has crafted the opening sequence of what would be the tv series to make all other tv shows redundant: "The Adventures of Indiana Jones"!