Barnes goes on a dangerous undercover mission involving an ambitious gang leader who is plotting turf wars and massacres across the Bronx in a bid for more power.

When a case of cyber-stalking escalates to multiple murders, the team must track down a hacker who will stop at nothing to get revenge on those he believes have wronged him. Someone from Hana’s past offers her help on the case, but at a price she’s not willing to pay.