The first teaser trailer for Star Wars: Rogue One, starring Felicity Jones, debuted Thursday on Good Morning America

The dark side just got a whole lot darker.

The first teaser trailer for Star Wars: Rogue One debuted Thursday on Good Morning America, and as promised, it looks like fans are going to be seeing a much grittier side to the force in the series’ first standalone film.

In the trailer, Felicity Jones as Jyn Erso – an orphan with a long rap sheet who joins the Rebellion and undertakes a mission to infiltrate the Death Star before its first weapons test.

“What will you do if they catch you? What will you do if they break you? If you continue to fight, what will you become?” Forest Whitaker asks Erso, who fights off Stormtroopers in the clip.

Rogue One is the first installment of several upcoming spin-offs that exist within the familiar Star Wars universe, but take place outside the regular film series. Directed by Godzilla’s Gareth Edwards, Rogue One is set shortly before the events of the original 1977 Star Wars: Episode IV.

Here’s Your First Look at Star Wars: Rogue One

The story follows the adventures of a group of Rebel spies hoping to find and destroy the plans for the Galactic Empire’s new super weapon: the Death Star.

Rogue One, starring Jones, Whitaker and Diego Luna, hits theaters December 16.