Mass Effect: Bring Down The Sky includes a new uncharted world that introduces the notorious and feared alien race of the Batarians. A Batarians extremist group has hijacked a mobile asteroid station in the Asgard system, setting it on a collision course with the nearby colony world of Terra Nova. Only Commander Shepard can save the millions of innocent civillians before the asteroid competes its deadly descent.

Bring Down the Sky contains 90 minutes of action and a new Achievment worth 50 Gamerscore points.