Before Messiah Complex came Endangered Species. This is the prelude to the X-Men Event of 2011. What does it mean to be a leader? What does it do to a person? What do the choices you make mean about the person you are? This mini-series delves into these issues and will give an X-Men reader what they need to know about their favorite mutants before everything changes in July.
— Description from Comic Vine community (comicvine.gamespot.com).
