new school year, same old bitch and a new one, and new best friends

What happens when Skylar and her new best friend (you will find out her name later) are Kidnapped by Young Justice to Find out that she is Nightwing's long lost little sister, and that he has always been looking for her ever since he found out that he has a younger sister who was kidnapped and put in an orphanage but was adopted and didn't know it