Bullock’s past comes back to haunt him when he and Gordon investigate two murders at Sirens. Meanwhile, Bruce and Alfred explore the tunnels beneath the city, and Penguin and Nygma’s…

Special Agents Maggie Bell and OA Zidan rush to track down an active sniper with an elusive motive as the body count continues to rise.

Danny must delve into the family politics of the Russian mob while investigating the death of a gangster’s son; Erin becomes involved in a high-profile corruption case.