Chicago Fire - Season 5 May 2026

originally aired from October 2016 to May 2017, consisting of 22 episodes. This season is marked by significant personal milestones for the crew of Firehouse 51, including the landmark 100th episode. Core Storylines and Themes

: A central arc involves Gabriela Dawson and Matthew Casey's pursuit of permanent adoption for Louie. To strengthen their case, the couple officially marries in the show's 100th episode, "One Hundred". However, they later face heartbreak when Louie's biological father, Andre, appears to claim custody. Chicago Fire - Season 5

: Kelly Severide deals with a dangerous stalker (Grant) targeting Stella Kidd early in the season. Later, he considers a career move to Springfield to be with Anna Turner, a bone marrow recipient he bonded with, but ultimately decides to stay in Chicago. originally aired from October 2016 to May 2017,