Nightwing walks up to the abandoned building alone since Batman has more important ti sh to do than see to Jason, or that's what he said anyways.

"Jason?" Nightwing asks but there is no answer so he walks in then goes upstairs where he quietly gasps.

Jason is on the floor unconscious with an empty bottle of vodka in his hand, "Jason can you hear me?" Nightwing asks worried he'll have to take Jason to Mount Justice to hospitalise him.

No reply comes from Red Hood so Nightwing does what he doesn't want to do and he calls up the team with his wrist computer. He left after Kid Flash died, he was too broken to continue so he disappeared for a while and hasn't talked to the team since.

Miss Martian picks up and gasps, "Nightwing where have you been? Nobody has heard from for years, you since-" she's cut off by a worried Nightwing.

"Set up a bed in the hospital wing I'll be there in 10 minutes." Nightwing says not having time to reunite over call and he begins to drag his younger brother to the nearest zeta beam where he teleports to Mount Justice.

"Nightwing BO1" 

The team all look at him with shock that's he's returned but Nightwing ignores them and drags Jason to the hospital wing where he puts him onto a bed takes off his top half of clothing and hooks him up to medical things.

He finishes then steps back to look at Jason and notices large wounds and scars from where he's been tortured. It's why he didn't want Batman to take his shirt off earlier, he didn't want them to have to see what Joker did to him.

"Jason..." Nightwing says looking at his younger brother in disbelief. He then picks up a glass and throws it against the wall in anger. He knew Joker did this and hated him for it.