The eagerly anticipated sequel to the blockbuster science-fiction epic IGN.com named the #1 Xbox 360 game of all time, Mass Effect 2 begins with the disappearance of Commander Shepard. The story of what happens next-exclusive to this graphic novel-will have the commander's companion Dr. Liara T'Soni undertake a deadly mission of extraordinary importance in the Milky Way's lawless Terminus Systems.

* Mass Effect Volume 1 features essential developments in the Mass Effect gaming saga, plus a special behind-the-scenes section with sketches and more.

* Collects the four-issue miniseries.