This trophy is titled "
Loose Ends" and it's an unmissable story based trophy for Episode 5, Chapter 1.
Chapter Walkthrough:
*** Spoiler - click to reveal ***Depending on your choice of stopping Harvey Dent or the Penguin in Episode 4, Chapter 5&6, you will either have to deal with the Children of Arkham or Dent's security forces.
Penguin Route (Stopped Dent in Episode 4):
The Jack Ryder will appear in a newscast informing the viewers that they've taken hostages, one of which is Commissioner Grogan. There will be several quick time events, saving some hostages, but Batman's suit will be heavily damaged. Grogan will support Batman, but is shot and killed. Batman will leave the scene, ending the Chapter.
Harvey Dent Route (Stopped Penguin in Episode 4):
Five days after Dent destroyed a city block, Jack Ryder is informing the citizens of those actions while an injured Lt. Gordon holds up on the GCPD rooftop after activating the Bat Signal. Dent has sent his security forces to the GCPD to arrest Commissioner Grogan after speaking out that Dent is a terrorist. Gordon makes a stand and you'll have to step in with some quick-time events to save him. Gordon will arm himself with a shotgun and he & Batman descend into the GCPD to save Commissioner Grogan, ending the Chapter.