|Where the Collapse Started|
|Season 4, Episode 22|
|Air date||May 10, 2016|
|Written by|| Sarah Kucserka|
|Directed by||Sanford Bookstaver|
"Kind of a Crazy Idea"
Where The Collapse Started is the twenty-second episode of the fourth season and the 91st overall episode of Chicago Fire.
Firehouse 51 heads to the scene of a building collapse where dozens of lives are on the line.
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