11. Mad City: Beware the Green-Eyed Monster

Complete story — includes the ending

It is revealed that Tetch infected Mario, who vows to make Lee hate Gordon and orchestrates a series of events to make her believe Gordon is trying to sabotage their wedding merely out of jealousy. The plan works and, just before the wedding, she pushes Gordon away. Lucius proves Mario's infection to Bullock, but not before Mario and Lee disappear from the party. Gordon convinces Carmine to reveal the couple's location by promising not to kill Mario, who later attempts to kill an oblivious Lee, but Gordon arrives and guns him down, much to her shock. Barbara tells Nygma about Cobblepot, but Nygma does not believe it until luring Cobblepot into revealing his feelings. Barbara and Nygma plan to kill Cobblepot and usurp his power in the mob. Using information provided by the Whispers, Bruce's party uses the key to open the Court's vault and steal its contents – a crystalline owl statue – but are intercepted by Talon, the Court's enforcer; Selina's mother reveals herself and helps them kill Talon.