Of all the groups, secret societies and allegiances created in the Babylon 5 setting, the most memorable and influential is arguably the Anla'shok. The Rangers are an intriguing organisation best defined not as what they are but as what they are not. The Rangers are the guardians at the gate, the shadows against the shadows. They are not warriors on any battlefield but the hidden ones of back alleys on distant worlds and the corrupt corridors of traitorous powers. This sourcebook both removes some of the mystery from the Anla'shok and adds several new layers of 'grey area' for Games Masters to use in their campaigns. It greatly expands the character options for Rangers, both in the hands of Players and as characters they encounter during the course of a campaign.