Thomas Gaitsch

Dawson turns to an unlikely source for assistance as she tries to help her brother; Severide does a favor for Lt. Whaley; Herrmann and Otis make tough discoveries about their silent partner.

A series of brutal home invasion robberies finds the team paired with Det. Borkowski, an old friend of Ruzek’s, to work the case. Things get complicated for Torres when it becomes clear Borkowski has a vastly different policing style.

Ruzek reunites with an old colleague to take down a crime ring, but when things don't add up, Voight and Burgess do some investigating of their own.

Ruzek's search for the daughter of an old family friend leads the team into a serious drug investigation; Burgess and Ruzek struggle to move on from the emotional aftermath of Makayla's abduction.