Marvel has released the spectacular first official trailer for Captain America: Civil War. Clocking in at two-plus minutes, the clip packs a lot: Bucky's memory is recovered but the authorities want to bring him in for his crimes -- something that Cap won't allow -- and just about all the Avengers are back (minus Thor and the Hulk), though the reunion isn't a happy one. We already know how the warring teams here will align, but the trailer doesn't go deep into the details of the conflict. Oh, and check out our first good look at T'Challa, aka the Black Panther. Captain America: Civil War hits theaters on May 6, 2016.