Disney and Lucasfilm just premiered a new trailer for Rogue One: A Star Wars Story, and you don't even have to wade through NBC's Rio 2016 Olympics coverage to see it. As we'd heard, this prequel to Star Wars: A New Hope will focus on heroes trying to steal the plans for a still-under-construction Death Star, and the new trailer gives us a good idea of what we'll see. Beyond a look at stars like Felicity Jones and Diego Luna, you'll also get a peek at a new droid character, familiar AT-ATs, and, yup, Darth Vader. The latest addition to the Star Wars universe premieres December 16th.