Watch Chicago Fire Online: Season 6 Episode 18

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How did everyone feel about the FBI taking over Firehouse 51?

That was revealed on Chicago Fire Season 6 Episode 18 when an undercover operation meant taking over the firehouse was a necessity. 

Meanwhile, two members of the team offered up their services to help in the investigation. 

Also, Kidd attempted to get Severide to come to terms with recent big changes in his life, but did a blast from the past derail everything?

Use the video above to watch Chicago Fire online right here via TV Fanatic. 

Get caught up on all the latest twists and turns right now. 

Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.

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Chicago Fire Season 6 Episode 18 Quotes

Sylvie [about Cordova]: Uh, there any details about him you'd like to, uh, share with me or...
Gabby: You know I'm not a kiss-and-tell kind of girl.

Stella: Are you mad at me for some reason?
Kelly: I'm not mad at you. I'm a little mad. But not at you.