The third and presumably final trailer for Marvel's Avengers: Age of Ultron has hit the web, and it features everything you'd expect from the sequel to the second biggest movie of all time. There's snappy one liners, a seemingly unstoppable villain, breathtaking action, and a Hulk and a Hulkbuster. You get a great look at franchise newcomers Elizabeth Olsen and Aaron Taylor-Johnson as Scarlet Witch and Quicksilver respectively, who look like they'll be causing some problems for our heroes (remember, Olsen's Scarlet Witch has two love interests in the comics: Vision—who we get a glimpse of at the very end of the trailer—and her own brother, Quicksilver). And for good measure, there's some good old fashion exposition. Basically, Robert Downey Jr.'s Tony Stark creates a robot named Ultron to help protect the world when the Avengers are off duty. But because creating artificial intelligence in movies is never a good idea, Ultron eventually goes haywire and tries to destroy everyone and everything in his sight. Pretty casual stuff. Avengers: Age of Ultron hits theaters on May 2, when you can expect box office records to shatter accordingly.