The next thrilling chapter in the continuing Star Wars saga is upon us. The first teaser trailer for Rogue One: A Star Wars Story has debuted. And it's as thrilling as expected. We're introduced to new characters, and there are some old surprises thrown in the mix as well. This heart-pounding first look debuted just a few minutes ago on Good Morning America. Now, you can watch the trailer in all it's glory right here, right now.

Based on a story often heard but never seen, Rogue One: A Star Wars Story is a prequel to Star Wars: Episode IV - A New Hope. It is a period of Civil War. The Rebel's have scored their first major victory against the Galactic Empire after a surprise attack from a hidden base. And It's during this sneak raid that a team of Rebel spies manage to steal the secret plans to the Empire's ultimate weapon: The dreaded Death Star!

RELATED: Rogue One Star Donnie Yen Would Consider Returning in a Future Star Wars Project

This first Star Wars spinoff introduces all-new characters played by Felicity Jones, Mads Mikkelsen, Ben Mendelsohn, Alan Tudyk, Diego Luna, Forest Whitaker, Donnie Yen and Wen Jiang. The movie is directed by Gareth Edwards. The script is by Chris Weitz, with the story coming from Gary Whitta and John Knoll based on characters and ideas created by George Lucas.

Back in September, Rogue One star Mads Mikkelsen signed an autograph for a fan, revealing that his name is Galen in this new adventure. Many fans have speculated that he could be Galen Marek from the Star Wars: The Force Unleashed video game. This character was the secret apprentice to Darth Vader, who went on to become instrumental in the formation of the Rebel Alliance, after uniting several of the Empire's enemies. While we still don't know for sure if Mads Mikkelsen is playing Galen Marek or not, further details seemed to point to this being at least partially true.

The character has been described as a scientist by insiders working for Lucasfilm. He is said to have taken over the Geonosian Death Star project, solving several of the space station's key flaws. He is revered by the Empire, getting compared to Robert Oppenheimer, who helped design the atomic bomb and later felt remorse for the death and destruction he helped create. Mads Mikkelsen's character reportedly flees from the Empire, and tries to "make things right," by enlisting the help of his only daughter, played by Felicity Jones. Which, if true, makes him a bad guy-turned-good guy. Mads Mikkelsen calls his character 'vital' and 'important' to the story.

Felicity Jones' character is rumored to be "undoing the devastation" her family has created in the galaxy. In this first sneak peek, we learn that her name is Jyn Erso. She is brought in by the Rebel Alliance and sent on a secret mission. This footage opens up this world even more, giving us our first real clues about this group of Rebel Solidier and the advisories they face. Check out the first footage along with the first images courtesy of Disney and LucasFilm. Then sound off in the comments. Is this another sci-fi classic in the making?