Will Casey be able to become Alderman?
That was the main question on Chicago Fire Season 4 Episode 17 when Alderman Becks continued to trash him in the press. Casey struggled to keep his cool, but who helped him through this tough time?
Severide and Cruz investigated a possible carbon monoxide leak inside a home, but they get shocked to the core when they find something that could lead them to the real answer.
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Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.