#Watch Chicago Fire Online: Season 9 Episode 4

Did Boden take a step too far?

On Chicago Fire Season 9 Episode 4, tensions mounted when he completed a task assigned to him by headquarters.

He made a startling connection that had a profound effect on him, making him question many things in his life.

Meanwhile, Gallo was forced to make a surprise rescue mission of their own in one of the most harrowing scenes in the series’ history.

Elsewhere, Mouch felt like Firehouse 51 was too quiet so he reignited a wild feud that caused a huge division.

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.