Jayne faces the fury of a family he's long neglected. But even if he can find a way to patch things up… a distress call from Requiem could spell disaster. Pure devastation may be in store, along with internal conflict, distrust as half the crew hunts for a dangerous target, and a secret on Jayne's end that no one truly expected! Despite Jayne trying to recklessly play hero, will the crew find more than they bargained for? Will the help of newly-trained...

The crew returns, but with only pure devastation to greet them, along with their own internal conflicts and distrust to deal with, especially as Jayne's character is obscured by a relationship to someone special. With only half the crew on the hunt for a potential target, Serenity ends up in dire straits, to the mortal peril of everyone on board…

Will the help of newly-trained allies be enough for Inara, Simon and Leonard to survive the Tax Collector, and the shocking reveal of an even deadlier weapon? Meanwhile, new mysteries arise with the mercenaries out in space, and Owen takes action in ways the Serenity crew couldn't possibly predict…

All-New Firefly comes to a stunning conclusion in this double-sized series finale by writer David Booher (Canto, Joe Hill's Rain) and artist Simona Di Gianfelice! Things come to an explosive conclusion with Requiem, the mercenaries, and the Alliance portals, but as Jayne reckons with his family and the past, a beloved member of the spaceship Serenity will make the ultimate sacrifice.

After their adventures on The Earth That Was, the crew of the Serenity are reunited under the leadership of Captain Kaylee. Unfortunately with food, credits, and morale low, the crew takes on a heist which proves too much for their moral code and quickly turns into a recovery mission. And it's not long before their current dilemma puts Captain Kaylee, Mal, Zoe, Simon, River, Leonard, and Emma on a collision course with the mysterious past of the crew...

The crew of the Serenity have some emotional exchanges while they ruminate on missing Shepherd Book, and regret how helpful he could have been with the Monastery, especially with the Monks mourning one of their own. After Mal leaves the monks with the means to defend themselves, a man with a crutch and a respirator shows up with a boy, revealing a shocking connection to Jayne!