(from the back of the box)
Join the Corps
The Corps is Mother. The Corps is Father. Earth harbors more than a single race. It also is home to Telepaths. A breed apart, Telepaths are imbued with minds distinctly alien from what we call "Human". A vast gulf separates them from the rest of humanity. And one powerful force labors to gather the telepaths to prepare them for an inevitable future War. That force is Psi-Corps. All knowing. Ubiquitous. On the surface, the Corps appears to be simply an arm of Earthgov. In truth the Corps is already a galactic power in its own right---a faction resourceful enough to pursue agendas on a scale equal to other member races represented on Babylon 5.
Now you can lead this uniquely capable faction. There IS a conspiracy growing in the galaxy. And now YOU are at the center of it. Babylon 5 is the nexus. Around it the great powers of the galaxy will rise and fall. No matter what happens next, YOUR actions will decide the outcome...