"Originally published in single magazine form as FIREFLY No. 9-12"--Colophon

After surviving death cults, bandits, and Serenity kind of exploding that one time, it's all come to this: a last stand at Serenity Valley, where a second Unification War is brewing as a reinvigorated band of Browncoats have grown into an army! In order to make things right, our good Captain Mal has to find allies in the most unexpected places...and that starts with one of the most ruthless, terrifying people in the 'verse: Ma Reynolds! From New York Times best-selling author Greg Pak (Star Wars), artist Dan McDaid (Doom Patrol), and visionary Firefly creator Joss Whedon (Buffy The Vampire Slayer, Marvel's The Avengers) comes the eagerly anticipated conclusion to the definitive story of the Unification War!