A digital exclusive comic series set in the Batman Arkham Series, following various characters' actions both during and before the plot of Batman: Arkham City. It is written by Derek Fridolfs.The comic is divided into several story arcs:
Inside Job (Issues 1-3): This story arc follows Hugo Strange trying to capture Two-Face, Batman and Catwoman, and then send them to Arkham City. It also is a prologue to Catwoman's DLC in the game.
Observations (Issues 4-6): Hugo Strange has captured Two-Face and Catwoman, and now is searching for Batman. Meanwhile, Commissioner Gordon searches for evidence to bring down Strange. Batman discovers a connection between Strange and Mayor Sharp.
Ruffled Feathers (Issues 7-9): This story arc follows Joker, Penguin and inmates stories.
Surgeon's General (Issue 10): In this issue, some inmates with several broken bones, victims of Batman, are being "interviewed" by Hugo Strange.
Separation Anxiety (Issues 11-13): The Abramovici Twins' ("Hammer" and "Sickle") past and their presence in Arkham City is explained.
Theatre of Violence (Issues 14-16): Robin enters Penguin's Iceberg Lounge disguised, in search of an underground fight club.
Arkham City Sirens (Issues 17-19): Tells the story of how Catwoman, Poison Ivy and Harley Quinn worked together. When Batman arrives, his presence splits the team.
Crocodile Tears (Issues 20-22): Killer Croc's Origin Story, explains where he came from and how he ended up in Arkham City.
Vicki in Wonderland (Issues 23-25): The Mad Hatter's throwing a party...a search party, for his "Alice!" Unfortunately for her, his first invitee is Vicki Vale, still in Arkham City after the helicopter crash. Once she's intercepted by Tweedledee and Tweedledum, will she be able to RSVP "NO" or is her fate sealed? And who else unlucky enough to be on his guest list?!
Operation: Kill Joker (Issues 26-28): When Penguin's assassin fails to kill Joker, the bird is looking for someone to finish the job. Deadshot is ready to fill that position...
Clown Court (Issues 29-31): The streets of Arkham City are empty, silent. What will happen when Batman learns everyone's flocked to the courthouse to witness a very peculiar court case...presided over by none other than Harvey Dent, and a jury of some of the greatest villains in Gotham history?
Repentance (Issues 32-34): In a place like Arkham City, a church may be little more than just another abandoned building. Nevertheless, for a group of innocents, Gotham police, and one very guilty Mayor Sharp, it's where they've come for sanctuary. A gathering mob doesn't feel that way, but a mysterious protector will show them otherwise.
Eviction Notice (Issues 35-37): This Story Arc explores Black Mask's transformation from Roman Sionis to a vicious criminal, captured behind the walls of Arkham City...with some of his least favorite fellow convicts!
Beloved (Issues 38-40): Batman flashes back to an early encounter with Talia, and her father, Ra's al Ghul. When she and her father save Batman's life, will the three be able to forge a partnership to save the world? And what happened that night in Metropolis between Talia and her beloved?
Uninvited Guests (Issues 41-43): Wayne Manor is under siege by Tyger Soldiers, as Robin and Nightwing try to fend off the attack. With their mentor in Arkham City, is there any way they can stop Hugo Strange's last-ditch effort to destroy Batman's world?
All There in the Manual: This series is the manual. Most of the stories are based off of the Arkham City Stories that are unlocked in the main game by scanning parts of the environment that are part of Riddler's challenges. Some, however, are separate, including events Batman took part in during the events of the game itself (though not shown in gameplay) and post-game content. Several characters, including the Wonderland Gang (March Harriet, the Unicorn, the Walrus, and the Lion) and Tweedledee and Tweedledum are also shown only in this comic, though some of their influence is implied for the main game by proxy.
All Your Base Are Belong to Us: We find out that part of Protocol Ten was Strange sending a squad of TYGER guards to invade Wayne Manor. With Batman occupied in Arkham City, it's up to Robin, Nightwing and Alfred to kick them out.
Big Damn Heroes: Azrael saving the Riddler, Sharp, Vicki Vale, and the other GCPD cops from Bane in the church in "Repentance".
Brainwashed and Crazy: All of Hatter's captives in the third issue of "Vicki in Wonderland", including Vicki Vale, Catwoman, the Carpenter, and Poison Ivy.
Broad Strokes: Some of the stories don't fit very well with the game's chronology. In particular when "Arkham City Sirens" takes place Joker should be long dead, but he makes a brief appearance. There are other smaller oddities, such as the fact that in the original prequel comic even Batman has trouble getting in and out of Arkham City, while in the story archs he and his allies are able to come and go as they please. Furthermore, "Vicki in Wonderland" appears to take place during the events of the game itself, but is not present in gameplay.
Childhood Brain Damage: Black Mask was dropped on his head as a baby, with his self-absorbed parents none the wiser. This was just the beginning of a long, painful life for him.
While most of the Wonderland Gang (barring the Unicorn) is no problem for Batman, March Harriet gets taken out without him even bothering to look in her direction.
Azrael doesn't have the slightest bit of problem fighting Bane, simply slicing open his Venom tubes with his swords.
Danger Room Cold Open: "Uninvited Guests" opens with a group of commandos lurking through the Bat Cave, being picked off one by one by Robin. Eventually it's revealed that it was a holographic training sequence set up for the cave. Then the real hired guns show up.
Dark and Troubled Past: We see the pasts of Black Mask, Killer Croc and Deadshot, and what drove them to evil.
How the Mighty Have Fallen: "Eviction Notice" begins with Black Masks's rise to power in his Origin Story... and then shifts to his trip to Arkham City, where he is almost completely alone and forced to run away from Bud and Lou when Harley and the Joker sic them on him. While it brings up another rise as he and Firefly escape with some other inmates, Firefly abandons him at the train and he is summarily trounced by Batman without much effort, followed by a beatdown by TYGER guards when trying to defend himself with a chair upon reentry.
Joker Jury: Prior to the events of the game, the supervillains capture Joker and force him to face a trial in Two-Face's court house. Joker is charged for being responsible for the current situation, because without his rampage in the first game, Arkham City would have never been created.
Leaning on the Fourth Wall: Depending on how you look at it. Issue 10 deals with Strange having to deal with all of the inmates that Batman has left injured. All of them have a different description of Batman, with accompanying pictures. All of them are alternate costumes that are unlocked in game. So perhaps all of the inmates descriptions are true.
My God, What Have I Done?: Michael Lane is implied to have gone through this in "Repentance"'s flashback, when he killed the previous Azrael, assuming he was the kidnapper he was sent to find, when the truth was that Azrael had just killed that same kidnapper, and was in fact innocent. As a result, Lane went on to become the next Azrael.
Old Flame Fizzle: Bruce and Talia's reunion in issue #40 oozes with this. It culminates in the two sleeping together. The next morning the heart-warming moment is broken when Talia goes Knight Templar mode and suggests Bruce killing her father
Origin Story: "Operation: Kill Joker" depicts Deadshot's. "Crocodile Tears" depicts Killer Croc's. "Eviction Notice" includes Black Mask's. "Repentance" shows that of the current Azrael, as well as, to a degree, Aaron Cash.
Orphaned Series: Due to some severe Schedule Slip, there is one arc of Unhinged that remains incomplete - "Slough of Despair," which takes place shortly after Arkham City opens and well before Batman is inside. It ran for 15 issues, and has not been finished.
Psycho Serum: Mad Hatter, aside from his normal Mind Control toxins, was given access to Scarecrow's fear toxin in his absence.
The Siege: After the events of the game, the people you rescued are holed up in the church. Every remaining inmate, including Bane (who had been manipulated into believing the church held more Titan), attack the building in an attempt to get to Sharp.