No Surrender, No Retreat describes the events of 2261 as they appear in Season 4 of Babylon 5. It explores in detail the personalities, events, and technology that shape the next million years of civilized evolution. Used in conjunction with the other season books and the core Babylon 5 RPG, No Surrender, No Retreat allows the Games Master to extend his games beyond 2259. Characters can participate in the grand sweep of the Great War, assist the Mars colonists in their bid for independence, or stand firm against the alien influenced Sheridan and his mad war of conquest.