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. 

Catch up on all your favorite shows and reviews and join in the conversations with other fanatics who love TV as much as you.

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

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