Chicago Fire 8x20 "51's Original Bell" Season 8 Episode 20 Promo trailer HD (Season Finale) - When one of 51's own gets injured on a call, Lt. Severide becomes obsessed with helping out. Foster contemplates a big decision. Kidd is concerned for one of her high school trainees.

Chicago Fire 8x20 Promo/Preview "51's Original Bell" (Season Finale)
Chicago Fire Season 8 Episode 20 Promo
Chicago Fire Season 8 Season Finale Promo
Chicago Fire 8x20 Promo "51's Original Bell" (HD) Season Finale

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» Watch Chicago Fire Wednesdays at 9:00pm on NBC
» Starring: Taylor Kinney, Jesse Spencer, Eamonn Walker