A new Star Wars movie will hit theaters this December and while it isn’t part of any of the three main sagas, it’ll still be a film that Star Wars fans won’t want to miss. Rogue One is the first standalone Star Wars story from Disney, and it tells the story of how rebels stole the plans for the Death Star that Luke and his friends blew up in the first Star Wars movie (now Episode IV).

Disney just released a brand new trailer for Rogue One, and it’s packed full of previously unseen footage.

DON’T MISS: The battery in a Samsung phone burst in our office, and it wasn’t a Note 7

We learn why the movie is called Rogue One. Apparently, that’s the ship’s callsign the rebels come up with when asked for one. Also, we learn that Jyn Erso’s father had to help the Empire build the colossal weapon, and it went against his wishes.

Yes, Darth Vader is also there, and the trailer hints that we can expect plenty of action from the new Disney picture.

There might not be any Jedi knights in this one, and we might never see the Rogue One crew ever again after this dangerous mission, but the upcoming Star Wars movie definitely looks like it’s going to be a thriller. After all, who doesn’t want to know how the Empire lost the plans for the Death Star, a mishap that eventually helped the rebellion destroy it.

Rogue One will be released on December 16th, which means we’re going to be bombarded with plenty of trailers and teasers in the months to come. Check out the second trailer below.