Batman finds out about his biological son, Damian Al Ghul Wayne, from an encounter with Talia Al Ghul, daughter of one of his greatest enemies, Ra's Al Ghul, who he's assumed to have a former affair with. Now, with him in his custody, the boy has now taken place as the current Robin.

Except, there's a problem. Damian has yet to master his 'justice not vengeance' morals and his violent behavior is yet to be atoned.

So, Nightwing had an idea, that he believed would benefit the family: