Jesse Spencer

In the wake of the shocking news that Firehouse 51 is closing, Tuesday's fall finale of Chicago Fire will mark the house's last shift together. But will it also be Casey's last shift ever?

In this exclusive sneak peek from Tuesday's episode (10/9c, NBC), Casey (Jesse Spencer) goes above and beyond the call of duty to rescue a woman's baby in an apartment structure fire even after Chief Boden (Eamonn Walker) orders everyone to evacuate.

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Will Casey be able to get to the baby before it's too late — and before the fire spreads too much? Watch the exclusive sneak peek:

Chicago Fire airs Tuesdays at 10/9c on NBC.