Chicago Fire 10×07 Promo “Whom Shall I Fear?” Chicago Fire 10×07 “Whom Shall I Fear?” Season 10 Episode 7 Promo – Gallo clashes with the new lieutenant temporarily filling in for Casey. Severide closes in on a dangerous and deadly arsonist. Show More… 102 Comments Related Videos Chicago Fire 10×06 Promo “Dead Zone” (HD) Chicago Fire 10×04 Promo “The Right Thing” (HD) Chicago Fire 10×03 Promo “Counting Your Breaths” (HD) Chicago Fire 10×02 Promo “Head Count” (HD)