Watch Chicago Fire Online: Season 7 Episode 21

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Was a copycat arsonist trying to take down the people of Chicago?

On Chicago Fire Season 7 Episode 21, Severide reopened a cold case when he found a connection to a recent salon fire. 

With the original arsonist not being found, it was up to Severide and a team of his choosing to find the culprit before the body count continued to rise. 

Who was the arsonist?

Meanwhile, Firehouse 51 celebrated a retirement party. 

A Horrible Storm - Chicago Fire

Who bid farewell to the workplace?

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

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

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