Roland Daggett watches with interest as a scale model of Crime Alley is blown up and congratulates his hired arsonist, Nitro. They discuss their plan to blow up Crime Alley and make it look like an old gas line ruptured so that it can't be traced back to Daggett. Nitro assures him that the job will be done at 9:00 sharp.
Meanwhile, Bruce Wayne watches Summer Gleeson give a news report about the City zoning board rejecting Daggett's proposal to bulldoze a block in Park Row - once an upscale section of Gotham, but now fallen into dilapidation and dubbed "Crime Alley." However, the area is still occupied and as the residents have nowhere else to go, they resist its destruction. Daggett appears on the news, arguing that although Park Row is a historical landmark, it's a breeding ground for crime. Bruce realizes that Daggett is up to something, but he has an appointment to keep, an appointment that he has never once been late for. Batman heads out to Crime Alley and runs into a young girl who is screaming for help. The girl tells Batman that there are some men threatening her mother and Batman goes to investigate. Inside the girl's apartment, Batman discovers three thugs destroying the place, telling the occupant that she was told to clear out. Batman easily beats the thugs and learns that the three were working for some corporation and were strong-arming everyone to leave.
Meanwhile, Dr. Leslie Thompkins, who runs a free clinic near Crime Alley, notes that Batman is late and decides to go out to look for him. A co-worker cautions her to be careful but Leslie says she's not afraid. While looking for Batman, Leslie comes across Nitro and a thug and confronts them. The two capture her and tie her up, dropping a blasting cap in the process.
Batman arrives at the Park Row Community Center and learns that Leslie has gone looking for him. He quickly goes off in search.
Meanwhile, Leslie is tied up in a condemned building filled with explosives. Nitro tells her that their next target is an old hotel. Leslie protests that there are people living in that hotel but the thugs don't care. They gag their hostage and leave. Meanwhile, Dr. Leslie Thompkins, who runs a free clinic near Crime Alley, notes that Batman is late and decides to go out to look for him. A co-worker cautions her to be careful but Leslie says she's not afraid. While looking for Batman, Leslie comes across Nitro and a thug and confronts them. The two capture her and tie her up, dropping a blasting cap in the process.
Batman arrives at the Park Row Community Center and learns that Leslie has gone looking for him. He quickly goes off in search.
Meanwhile, Leslie is tied up in a condemned building filled with explosives. Nitro tells her that their next target is an old hotel. Leslie protests that there are people living in that hotel but the thugs don't care. They gag their hostage and leave. Meanwhile, Dr. Leslie Thompkins, who runs a free clinic near Crime Alley, notes that Batman is late and decides to go out to look for him. A co-worker cautions her to be careful but Leslie says she's not afraid. While looking for Batman, Leslie comes across Nitro and a thug and confronts them. The two capture her and tie her up, dropping a blasting cap in the process.
Batman arrives at the Park Row Community Center and learns that Leslie has gone looking for him. He quickly goes off in search.
Meanwhile, Leslie is tied up in a condemned building filled with explosives. Nitro tells her that their next target is an old hotel. Leslie protests that there are people living in that hotel but the thugs don't care. They gag their hostage and leave. Elsewhere, a desperate man who has lost both his job and his house is holding a clerk from Daggett Industries hostage on top of a roof, and plans to kill him. Batman intervenes and manages to save the hostage and capture the madman. After finishing his task, Batman goes to Leslie's house and flips through an old scrap book containing newspaper articles about the tragedy that claimed the lives of his parents and how Leslie comforted a young Bruce Wayne after he lost his family. Batman searches her house and sees a homeless man staring through the window. Batman confronts the man and discovers that he picked up the blasting cap. After some pressure, the man reveals where he saw the men take Leslie.
Batman heads out to get to Leslie but a trolley driver passes out at the controls and the vehicle goes out of control. Batman has no choice but to try and stop the trolley. He manages to do so but at the cost of losing the Batmobile's back wheels. Time is rapidly running out and Batman must now travel without a vehicle.
Nitro and Crocker finish up their job but Batman catches them both in the act. Nitro quickly confesses what they are doing, and says that they have to get out of there before the bombs go off at nine o'clock. Batman locks them both in the back of Nitro's van, ensuring that if the bombs do go off, they'll go up with them. He rushes into the condemned building to save Leslie. He defuses the bombs next to her, and she warns him to get the people out of the hotel before it explodes. Daggett gives a speech to the zoning board, keeping one eye on his watch, and arguing that they "cannot allow the underclass to hinder [them] from building a better tomorrow." As he finishes his speech, the bombs go off and several buildings are destroyed.
Daggett arrives at the fallen strip of Crime Alley and is shocked to discover that Batman has disarmed the main bomb and his thugs have only managed to destroy a few condemned buildings. His thugs are quick to confess but Daggett denies any involvement and drives away. Batman starts to go after him but Leslie tells him to let it go and reminds him that there's an appointment to keep.
Batman and Leslie go to the spot where his parents were killed and Batman lays two roses down in memory of his parents. Leslie claims that it's sad what happened to Crime Alley and that good people lived there once. Batman assures her that "good people still live in Crime Alley." 
