In the Season 4 finale, Jeremiah warns a skeptical Gordon of more destruction coming Gotham's way, and Gordon is forced to make a potentially devastating decision. Meanwhile, Barbara rallies together a team to secure her position, as alliances in the underworld shift and prove no one can be trusted. Then, Bruce is forced to come to terms with the future.
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.
Things get complicated for Gordon, Sophia and Penguin when Carmine Falcone comes to town. 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.
With Professor Pyg striking fear throughout Gotham, Gordon and Bullock head into the Narrows to look for clues. Bruce Wayne meets a former friend, Grace, who convinces him to come along for a night out with some old classmates. Meanwhile, Sofia's relationships with Penguin and Gordon continue to evolve.