Out of options, Robin turns to Jason Bard for help in stopping the Man-bats. Bard gives Robin four doses of Kirk Langstrom’s serum. Tracking the creatures to the river, Robin faces off with Francine Langstrom. Succeeding in transforming Francine back into her human form, Robin learns that her son, Aaron, was born a man-bat.
Robin attempts to use Aaron to track down the boy’s father when Aaron is attacked by Jaeger. Before he can help the boy, Robin battles Kirk’s daughter, Becky. Only after some assistance from Francine is Robin able to chase after Jaegar who now has to fight not only Aaron but his father Kirk. Once Jaegar is out of commission, the Boy Wonder is finally able to dart Man-Bat and reunite the family together.