Gotham - Season 4 (2017)

Bruce puts the lives of a Gotham Natural History Museum historian and his grandson in danger as he attempts to discover the meaning behind his knife from the auction.

Nygma uses Butch to regain power and identity; Sofia Falcone appeals to Penguin's vulnerable side; Bruce makes bold moves with the dagger in his possession.

Gordon and Bullock pursue a serial killer who's assassinating cops and dressing them in pig heads.

With Professor Pyg striking fear throughout Gotham, Gordon and Bullock head into the Narrows to look for clues. Bruce Wayne meets a former friend, who convinces him to come along for a night with some old classmates.

Grundy and Nygma become main attractions at Cherry's Place in The Narrows. Penguin wants revenge when he hears Nygma is mocking him on stage and enlists The Sirens for help. Meanwhile, Gordon is offered the position of GCPD Captain.

Professor Pyg continues to torment Gotham city, involving Jim Gordon whenever possible. Sofia and Penguin get ready for a fundraiser for the orphanage, and things don't go as planned when Professor Pyg shows up as the chef.

Gordon tries to broker a deal with Penguin that involves Sofia. As Lee Thompkins gains more control over the Narrows.

Carmine Falcone comes to town, making things complicated for Gordon, Sofia and Penguin. Alfred tries to get through to Bruce once and for all, Nygma struggles to gain control over the Riddler persona, and Tabitha attempts to make Grundy remember his past. Meanwhile, a familiar smile resurfaces in Gotham.

Gordon investigates when a bomber is hired for an assassination. Lee tries to rebuild the Narrows with Nygma's help. Alfred gets used to life away from Bruce.

Ivy tracks a secret project on which Wayne Enterprises is working and begins to target anyone that can give her information. Meanwhile, Jerome becomes obsessed with Penguin in Arkham.

Ivy picks her next target, leading Gordon and Lucius back to an old friend, as Selina tries to take matters into her own hands. Sofia wants full control of Gotham and turns to Lee about the state of the Narrows. Meanwhile, Bruce tries to make amends with Alfred, and Nygma visits Arkham.

Bullock and Gordon try to track down someone who is key in Sofia's control over Gotham. Meanwhile, Penguin, Lee and Nygma enlist an unlikely ally as they seek revenge, and Selina asks Bruce for a favor to help rid her of her guilt over Ivy.

Arkham's "finest" give Gordon and Bullock a run for their money, as they hatch a plan to escape the asylum. Meanwhile, Bruce devises his own strategy to thwart their plans. Also, Barbara gets an offer she can't refuse.

Gordon and Bullock try to stay one step ahead as Jerome zeros in on his next target. Meanwhile, Nygma hosts a riddle game show in the Narrows and faces his toughest challenger in Lee Thompkins, and Penguin goes to see Butch with a proposal.

The Arkham inmates are still running freely in Gotham and they're only getting more difficult to catch. Gordon develops a plan, but reluctantly has to turn to Bruce for help. Meanwhile, Barbara finds out just how far her new friends are willing to go for her.

Gordon and Bullock try to figure out who the clever thief is behind the robberies of various bank branches in Gotham. Meanwhile, Barbara is put in danger, forcing Tabitha to recruit help.

Chaos erupts at the GCPD, sending Gordon on a wild goose chase for the culprit behind the mass takeover. Meanwhile, a friend of Bruce's becomes paranoid, resulting in rash and destructive behavior.

As Gotham falls into complete anarchy, a team of unlikely heroes step up to save it. Bullock takes the lead at the GCPD and Bruce's psychological limits are tested as those close to him are put in danger.

Jeremiah warns a skeptical Gordon of more destruction coming Gotham's way, and Gordon is forced to make a potentially devastating decision. Then, Bruce is forced to come to terms with the future.