"Gotham" is advertised as an origin story of the mythos relating to Batman and other DC comics character.
The Fox TV series spent its first season telling the early days of the villains and allies of the Dark Knight. While the show fulfilled its job, executive producer Bruno Heller said "Gotham" season 2 is the real beginning.
Talking to TV Line, Heller said "Gotham" season 2 "is definitely the season where the origin stories start really kicking in."
Heller is probably talking more about David Mazouz's Bruce Wayne. Mazouz earlier said his character will start his transformation into the Dark Knight that he is supposed to be.
This is initiated by the scene in the first season's finale where in Bruce and his butler Alfred discovered a room "full of secrets."
"In every way possible. Bruce's discovery of that room in the season finale was a turning point. It's going to touch everything in Bruce's life," Mazouz said as reported by DC Comics News.
"It's going to turn the page to a different chapter in every imaginable way on his journey to becoming Batman. In season one, Bruce and Alfred were constantly butting heads, but in season two, because of the cave, they're going to go through a really rough patch. But one they get through it, they're going to really start to become a team. They're really going to have the Batman/Alfred partnership that you know."
"Gotham" season will pickup with Robin Lord Taylor's Oswald 'The Penguin' Cobblepot now the king of the city after defeating Fish Mooney (Jadaen Pinkett Smith). However, the city will not be entirely his as new villains are out to take the power from him. For that, he has to watch his back.
"Mr. Cobblepot is the king of Gotham at the moment, but it's a contentious situation. He's got to vie for that constantly," McKenzie on the same interview with TV Line.