Batman: Welcome to the Madhouse 

• It starts off with Commissioner Lobe thanking Jim Gordon for all the things that he’s done to bring down the crime bosses. He also gets stuck with Detective Yin as his new partner since Bullock is in jail.

• Gordon goes to testify, and we witness the Judge ruling against the kingpins and finding them guilty after Jim gives his testimony. Harvey Dent is the new district attorney, and he is doing a good job. Falcone says that he will be back and he knows how the system works, but Harvey Dent assures him that the system does not work like that anymore.

• It was revealed that Falcone and Maroni killed themselves in their cells. The suicide note said something about how they killed themselves to escape the painful laughter. Yin and Gordon are tasked to find out who or why they did this. They suspect Penguin and go to talk to him.

• We see Batman stocking out a rooftop and then Catwoman goes in through a window. Catwoman is stealing from Falcone’s empty apartment since he is now dead and Batman stops her, but she is able to get away flirtatiously.

• Yin and Gordon went to talk to Penguin and it came up a dead end. Penguin would have nothing to gain from them dying because he had dirt on them, not the other way around. Also, Penguin kept implying that he thinks that Batman is either Gordon or the new district attorney. Yin also reveals how much she desires to take down the Batman.

• Batman goes to investigate the cells where they killed themselves and he finds that they definitely did kill themselves but the notes are weird. He also found a Joker card outside of the cells and is trying to figure out what that is. It is implied that Joker used gas to make them go insane from outside the cell.

• During the court case to sentence Bullock, Joker comes in with two goons and offers a new piece of evidence. He throws it at the judge and it explodes, and then Joker orders his two goons to take on Yin and Gordon, while Joker goes and activates Joker toxin on Bullock. Gordon and Yin take out the Joker's goons, but Joker manages to get away, and Bullock is smiling and laughing like crazy because he has been infected by Joker's venom. Bullock is taken to the hospital and Joker is on the loose. 

• Gordon is in the hospital with Bullock and it’s revealed that Batman is there as well and he takes a blood sample. They exchange notes and determine that this Joker guy is a new crazy villain on the scene and he obviously has to be stopped.

• It looks like Joker hacked into the messaging systems of just about everything. The news is reporting weird stuff, people are sending each other text messages that are offensive that they wouldn’t really say,  and things are turning into chaos in the streets because of the Joker's unsavory messages. Gordon is having a fight with the commissioner over the fake Joker texts. Batman is patrolling the streets. Catwoman is out to kill Penguin for the untrue blackmail that he sent on behalf of Joker.

• Batman is driving through the city trying to fix stuff and he pulls up to explain what’s happening to the police department but the commissioner orders Batman to be arrested and Yin tries to arrest him but Gordon is the one who puts on the cuffs. Batman headbutts him and escapes. And while Batman is escaping, he sees Catwoman fighting Penguin in the street.

• Apparently, Penguin’s fake text to Catwoman was making fun of some little girl who died that was very close to Catwoman. Penguin doesn’t even know what they’re talking about but they get into a fight and Batman breaks it up. Catwoman gets away after Batman intervenes and Batman drops Penguin off at the police station.

• Back at the Batcave, it’s revealed that Alfred was able to silence the radio waves, but some of the damage has already been done. Harvey Dent goes home to his wife and it’s revealed that his wife got a joker text from him that said he was sleeping with another woman. When asked about this, Harvey came clean and revealed that when he was prosecuting a case against someone who sexually assaulted and murdered a little girl, Catwoman was a witness in that case because it was her adopted little sister. Catwoman had gotten the better of him and slept with Harvey, causing him to be unfaithful in his marriage.

•  After hearing this, from Harvey Dent’s mouth, his wife left him. Catwoman did not trust the law until Harvey, that’s why she slept with him.

• Catwoman’s motivation was there was some weird Jeffrey Epstein-type stuff going on with her younger sister and it was swept under the rug until Harvey Dent was the new district attorney who helped put them away. She took crime into her own hands as Catwoman because of the injustice before Harvey.

• Harvey Dent then got a call from Commissioner Gordon to come and question the Penguin, and during the questioning, Harvey was too flustered to have anything stick against Penguin so he had to go free. The Penguin also kept pressing his buttons and calling Harvey, the Batman and Yin started to believe it and said that they had to arrest Harvey since he was the Batman. Harvey and Yin now have beef.

• After the chaos was all calmed down, the police are issuing a press report detailing and debriefing how those messages that people were getting were not true. 

• Batman and Alfred get done synthesizing the Joker venom antidote in the lab and Batman goes to administer it to Bullock. He gives it to Bullock and it works, but then Joker comes out and talks to Batman and reveals that he’s the reason for Joker existing. He was the creep who fell in the vat of acid, and he thinks that Batman and Joker are the same. Batman disrupted organized crime, and now Joker is disrupting the rest of the organization because he thinks it is all a joke. He says it’s a zoo out there and alludes to the fact that he released a bunch of animals from the zoo that are now going crazy in the city. Batman ties up Joker at the hospital and says that there will be a padded cell in Arkham for him.

• Catwoman is dealing with a tiger, Penguin is being harassed by an ostrich and an armored mechanized penguin, and downtown by the police press conference an elephant is charging in a gorilla is going rampant. Batman saves the Police press conference by tranquilizing all of the creatures. After Batman saves them, Yin pulls her gun and tries to arrest him. Gordon speaks up for Batman and the commissioner approves, and they have decided to make Batman their honorary official consultant. However, it is stated that if Batman has one move out of line, they are going to take him down.

• Small sidenote, Penguin has a pet penguin now. 

• Gordon and Yin go to check on Bullock and arrest Joker, but Joker was gone and left his card. They take Bullock and still put him in jail. 

• At the top of the Gotham City Police Department, it’s revealed that the bat signal now exists, and they will shine in the sky, as a glimmer of hope for the citizens and fear for the criminals. They shine it when they need his help and remind all that justice is always there.

• It is revealed that Joker may have escaped the police, but then he went and checked himself into ArkhamAsylum as an inmate.