Complete story — includes the ending
Nygma's dual personality as the Riddler takes control of him and, with his intentions to overthrow Lee as the head of the Narrows, he hires Griffin Krank to assassinate her while she gives a speech to unite the Narrows. However, the assassination attempt fails, inciting a bombing instead. Alfred and Detective Gordon help rescue those in the bombing; Alfred is hailed as a hero at a local diner, while Gordon pursues Krank. Ivy reappears in a newly mutated adult body, created by a combination of drugs and toxins. She enters the recently rebuilt Sirens nightclub and reveals her powers to Selina as the two allies. Alfred learns that Tiffany, a waitress from the diner, has been killed by her abusive boyfriend, Rooney. Although Alfred is framed for the murder, he tracks down Rooney and, alongside Bullock, who is now working as a bartender, has Rooney arrested. Nygma confronts Krank, not knowing his Riddler persona hired him. Gordon, who was led to Krank by Barbara earlier, arrives and shoots Krank dead just as he reveals the Riddler's involvement; Nygma lies to Gordon, keeping his involvement a secret.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Gotham season 4. HTML formatting and reference markers removed. · Content license