I'm really bad at summaries. Danny needs to protect his only now known nephew. How hard it can be?

When Danny's life is ripped apart he takes refuge with some young heroes, but he cannot truly escape. A Young Justice and Danny Phantom crossover Warning: As with all of my other fan fiction, my stories have extreme settings and plot points, thus justifying extreme/vulgar language. If you can't handle obscenity I strongly suggest you stay away. However unlike my other stories, this fanfic will be free of all pairing/ships/otp's if you want to see it as a pairing I will clearly not mind, but please note that this is angst/action-adventure not fluff or slash.

Batman forces the team to host a Arkham inmate in the cave. Who is this mysterious person?