S10, EP7 "Whom Shall I Fear?"
Gallo clashes with the new lieutenant temporarily filling in for Casey; Severide closes in on a dangerous and deadly arsonist.
S10, EP6 "Dead Zone"
A major security breach in the city's computer networks forces Firehouse 51's senior leaders to take matters into their own hands; Severide gears up for an arson investigation.
S10, EP5 "Two Hundred"
Casey makes a life-altering decision; Gallo, Ritter and Violet agree to an interview and photo shoot; Brett and Mouch launch the paramedicine program; Cruz comes closer to fatherhood.
S10, EP4 "The Right Thing"
Kidd spreads her wings as a lieutenant; Chief Hawkins rides with Ambulance 61 to learn more about Brett; Casey takes a trip out of town; a Ritter date night turns into an emergency situation.
S10, EP3 "Counting Your Breaths"
Griffin learns the truth about his father's death and reveals why he really came to visit Casey; Gallo, Ritter and Violet take steps to expand their microbrewery business.
S10, EP2 "Head Count"
A video of Casey from the roof rescue goes viral; Mouch sets up a Little Free Library at Firehouse 51; Herrmann breaks protocol.
S10, EP1 "Mayday"
Firehouse 51 deals with the aftermath of the capsized boat rescue; Gallo, Ritter and Violet discuss plans for a side gig.