Batman Arkham Origins

"Batman learns of a breakout at Blackgate Prison led by Black Mask that has taken Commissioner Gillian B. Loeb hostage. Arriving at the Prison, Batman discovers a ferocious humanoid crocodile like creature calling himself Killer Croc aiding Black Mask."

"Escaping the GCPD as they retake the prison, Batman goes back to the Batcave to analyze the data from a drone he found in the prison and learns that including Killer Croc there are a total of 8 assassins trying to kill Batman."

"Believing that the drone belongs to The Penguin, Batman tracks him to his ship The Final Offer where Penguin is hosting his annual "Boiler Deck Fights."

"The Final Offer where Penguin is hosting his annual "Boiler Deck Fights." There Batman encounters one of the assassins: Electrocutioner, who goes down after one hit."

"Originally a soldier in the U.S. Army during the Vietnam War, Slade Wilson was part of an experimental super-soldier program where he gained enhanced strength, agility, healing factor and intelligence. Deathstroke became a mercenary soon after the experiment and rapidly gained a reputation as one of the world's greatest assassins."

"On his way out of the Final Offer, Batman receives a broadcast from the controversial vigilante appropriately named Anarky which he interprets as more bad news on top of the rest of the madness of the night."

"Batman is able to learn from Penguin, before he escapes into his safe room, of a double murder in one of Black Mask's safe houses at Lacey Towers."

"In order to identify the victims and the assailant, Batman needs to compare their DNA samples to the National Criminal Database, and the only place Batman can do that is from inside the GCPD Building."

"Taking the young girl's advice, Batman sneaks into the sewers where he discovers that Black Mask is plotting to destroy the GCPD."

"Obsessed from a young age with Lewis Carroll's book Alice's Adventures in Wonderland, Jervis Tetch, an expert hypnotist, embraced a delusion that he was the incarnation of a character in the story, The Mad Hatter."