: Captain Casey (Jesse Spencer) leaves for Oregon in the 200th episode to care for the Darden boys.
: A manipulative new addition who creates significant friction within the ambulance crew. 🚒 Essential Viewing Significance Resolves the deadly Season 9 underwater cliffhanger. "Two Hundred" Matthew Casey says goodbye to Firehouse 51. "The Magnificent City of Chicago" Chicago Fire - Season 10
: Initially met with skepticism, he eventually earns the respect of the crew. : Captain Casey (Jesse Spencer) leaves for Oregon
Chicago Fire Season 10 is a milestone year for the series, marked by its 200th episode, a major cast departure, and high-stakes rescues. Key Storylines and Moments marked by its 200th episode