For the first two seasons of Gotham, Poison Ivy was a young girl around Bruce’s age. So when the show cast Maggie Geha as an adult Poison Ivy ahead of season 3, many fans wondered if there was a time jump in the series’ future. But long story short: There’s not.
In the official synopsis for Gotham‘s third season, Fox reveals just how the show is going to incorporate the grown-up Ivy into the story. The synopsis reads:
Gotham returns Monday, Sept. 19 at 8 p.m. ET on Fox.