Jesse Spencer

After Season 11's cliffhanger proposal, "Brettsey" fans are preparing for wedding bells.

Chicago Fire showrunner Andrea Newman reveals Brett has "a little journey for herself with her baby in her life ahead."

A small detail in the photos might tell us where Brett and Casey are headed this season. 

Despite non-stop action, the holiday season keeps these Windy City first responders merry and bright.

Here's what Firehouse 51 looked like at the very beginning. 

Here's what happened with the little boy Gabby Dawson and Matthew Casey tried to adopt. 

Chi-Hards still carry a torch for these beloved characters who were taken before their times.

Chicago Fire Season 11 ended on a romantic cliffhanger — but when the director yelled, "Cut!" Jesse Spencer couldn't help but pull a cheeky stunt. 

These bad guys definitely kept Firehouse 51 busy.  

Neal Fox was the dreamboat of Uptown Girls, and Spencer was responsible for every swoon.