An Observer makes contact with the Fringe team to help rectify a mistake. Meanwhile, Walter befriends Roscoe Joyce, one of his musical heroes.
The crew comes to the aid of a bordello when its madam, an old acquaintance of Inara's, asks for help after a gunslinger claims a prostitute’s baby is his and he's taking it because his wife is barren.
A bounty hunter named Jubal Early sets his sites on capturing River Tam and manages to sneak aboard the Serenity in deep space.
The Serenity crew defends a bordello against a gunslinger who got a prostitute pregnant and now intends to collect the child.
Mal and Zoe receive a crate containing the body of an old wartime friend, but the man turns out to be very much alive, and smuggling a secret cargo.
Mal's "wife" Saffron has a plan to steal a valuable gun, but the plan goes awry when the gun's owner turns out to be another of Saffron's husbands.
The crew is caught off-guard when a bounty hunter, eager to claim the enormous reward on River's head, sneaks aboard Serenity and methodically begins taking the crew prisoner one by one.
Disguised as medical personnel, the crew infiltrates a hospital with the intention of stealing valuable supplies.
The Serenity engine explodes, leaving the crew low on oxygen and adrift in deep space.
The Serenity crew pulls a job in a town where Jayne once made some friends and few lifelong enemies.
Mal unwittingly marries a beautiful village girl during a job in the backwater. But the surprises don't end there. Christina Hendricks guest stars.
Things go terribly wrong during a job on an outer planet; both Simon and River are kidnapped by the locals in need of a doctor, while the rest of the crew finds themselves in need a doctor of their own.
On a mission to transport some goods on the planet Persephone, the Serenity crew attend a ball where Mal finds himself at odds with one of Inara's "clients".
The Serenity crew drifts upon the ruins of a colony ship and goes on a salvage mission. The expedition turns from bad to worse when the entire crew massacred... except for one.
The Serenity crew is coerced into pulling a train robbery. When they discover the stolen cargo is actually medicine intended for refugees, they are forced to reevaluate their priorities.
In desperate times, the crew of Serenity is transporting passengers to another planet, only to discover that one of them has smuggled something strange in their cargo.
Sci-fi western set 500 years in the future, in the aftermath of a universal civil war, that centers on the renegade crew of a small transport spaceship.
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