This trophy is titled "
Back to Business" and it's an unmissable story based trophy for Episode 4, Chapter 4.
Chapter Walkthrough:
*** Spoiler - click to reveal ***Batman arrives at the Batcave determine to find out why his Bat Stunner did not work on the drone back at the Vale Residence. Bruce asks Alfred to call Lucius, then begins examining the Bat Stunner.
Remove the Exterior Casing to find no initial problems. Turn the device over and remove the Back Panel to find no issues. Remove the Side Panels to again find no noticeable issue with the device. Turn the device back over and look at the Circuit Board to find an issue with the microchip. Alfred will get Lucius on the phone for Bruce who sends him the schematics for the stunner. Lucius says someone bypassed the security upgrades and wants to take the blame for Oswald being able to do so. Determine a route on defending your tech from Oswald's attack, then Alfred will interrupt the conversation. Harvey is holding a press conference stating he's seizing Wayne Manor to protect the common man from the Gotham elite. He gives an ultimatum for Bruce to vacate in 24 hours or he'll be forcibly removed. Choose to talk to Harvey as Batman or as Bruce to complete the Chapter.