Chicago Fire season 10: Kara Killmer shares hilarious Brettsey video from Chicago Fire set

CHICAGO FIRE -- "Welcome to Crazytown" Episode 807 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Adrian Burrows/NBC)
CHICAGO FIRE -- "Welcome to Crazytown" Episode 807 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Adrian Burrows/NBC) /

The countdown to season 10 of Chicago Fire is officially underway and we’ve officially reached another major milestone on the journey to the new season’s arrival!

With less than two months to go until the One Chicago franchise’s return, production has officially begun on the season with the cast and crew returning to Chicago to begin filming the new season.

To commemorate the start of Chicago Fire season 10, Kara Killmer shared a hilarious Brettsey video shot between takes on set and we couldn’t think of a better way to kick off the start of production on the new season!

Chicago Fire season 10 set video

With filming officially underway, Kara Killmer has given fans their first chance to see Brettsey back together in action on set by teaming up with Jesse Spencer for an incredible video sure to bring a smile to fans’ faces.

“Just here with my best friend Jesse Spencer,” an enthusiastic Killmer begins the video before turning things over to her co-star, who has a hilarious reaction upon seeing himself and the fun filter Killmer has selected.

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“Oh man, what happened to me?” Spencer jokes as he joins in on the fun after catching a glimpse of the filter in use, leading him to fully embrace the moment with an animated performance. Could these two be any cuter?!

Considering we’re still waiting for our first official promos and images for the new season, Killmer’s video was just the treat we needed and we’re absolutely loving our first unofficial Brettsey moment of the season! Now that production is underway, we can only hope that more behind-the-scenes videos from Killmer and Spencer are to come as we love the chemistry the pair share both on and off camera.

Next. Who’s leaving Chicago Fire after season 9?. dark

For the latest Chicago Fire season 10 spoilers and news, plus more on the entire series, follow the Chicago Fire category at One Chicago Center.