Delilah has been transferred into the bigger and better funded Central City Zoo! Of course Danny's invited to come visit her, he's specifically one of the few people allowed to be in the same physical space as one of the worlds deadliest wild animals, specifically, the most violent and aggressive species of gorilla. All because Delilah, at some point, convinced herself that Danny is her baby and she pretty much refuses to hurt him in any way. She will groom him, and share her food with him, and sits him down to teach him her signs, and play very, very gently with her weak human baby, even though she insists, through sign, that he's very strong. The primatologists always lose their minds when Danny visits, as Delilah doesn't let any other human ape of any kind within five feet of her without a sedative. Depending on her mood, she might even try to keep Danny safe away from other humans. He's her baby, you see.
Unfortunately, the new World's Deadliest Gorilla exhibit attracts the attention of Grodd. The hyper-intelligent meta-gorilla wants to use the worlds deadliest gorilla to get vengeance on the Flash for ruining his world domination plans, and he doesn't really care if some human child gets hurt in the process. In fact, that'll probably hurt the Flash more.
