They told us space was empty. Dead. Something to be filled. They lied. Out on the Rim, Captain Malcolm Reynolds and his crew are learning the truth about terraforming, about the Alliance's neural dampeners, about what really drives Reaver ships through the black. As their own ship Serenity develops a mind of its own and River Tam's madness starts making terrible sense, they're facing a reality no one prepared them for: space was never empty - and humanity's greatest achievement wasn't filling it with life, but waking what was already there. Now evolution itself is watching. Waiting. Hungry.