The first official trailer for Rogue One: A Star Wars Story is here -- and we couldn't be more excited! It's jam packed with action, adventure and the Dark Side.

Confused about what "A Star Wars Story" means? Us too. Here's what we gleaned -- Rogue One is a stand-alone movie that is set in the Star Wars universe but it's not part of the new trilogy. The film is set shortly before A New Hope and centers around a group of Rebel spies (Felicity Jones), who are on a mission to steal the plans for the Empire's devastating new major weapon, the Death Star.

The movie stars Jones, Diego Luna, Riz Ahmed, Ben Mendelsohn, Donnie Yen, Jiang Wen, Forest Whitaker, Mads Mikkelsen and Alan Tudyk.