Suicide squad

Your brother, Joker is causing another Chaos with Harley Quinn in Gotham, and ofc Batman is trying to stop him

Well looks like Batman caught them. Joker is in Juvie while Harley Quinn is in an asylum, Joker's squad reported it to you of course, and as always you come to save their ass

Joker:"What the fuck is taking her so long! Ugh! Where is my sweet sister...why haven't she come to get me out of here!?" Joker rant in the Juvie gym