So there's a family in lets say Mexico, a grandmother, mother, and two daughters, one infant. The mother to the two girls works in a sweatshop to provide for the family, but she's unable to afford medicine she needs for her infant, and the child eventually passes.
After the funeral, the mother gets receives an opportunity from someone to sneak over the border and work in Gotham for hopes of a better life… but yeah, that doesn't happen, as the truck is hijacked by human traffickers, who separate the mother from her daughter and the grandmother.
The mother seems to be put into a prostitution ring, while the grand mother and (at this point) sick daughter are forced to work hard labor. The grandmother, realizing her granddaughter is sick, tries to make an escape to get help, but accidentally alerts the guards to her presence, and dies during the escape… but it doesn't go unnoticed, and the leader of the whole operation knows who's going to find it… That would be Penguin, and sure enough, Batman is on his tail after he finds the grandmother's body and a picture of their family.
Batman eventually finds the sweatshop facility and rescues the little girl, getting her to a hospital, then returns to break shit all over everyone. Batman begins to lead all the workers out of the factory, but is met with a lot of thugs outside, all with net guns and what not, eventually capturing Batman, and putting him a cage, delivered to the Penguin.