Rich Komenich

Atwater and Burgess must keep their new patrol car in mint condition; the Intelligence Unit uncovers drug smuggling; Voight's behavior toward Lindsay drives her right where he doesn't want her; tensions rise between Olinsky and Ruzek.

A young accident victim (Nicolette Little) requires a blood transfusion that can come only from her father (John Thaddeus) who is missing from the hospital.

The brother of death-row inmate Lincoln Burrows intentionally gets himself incarcerated, then plans to use his skills as a structural engineer to free him.

The tables are turned when one of the group's relentless pursuers becomes the pursued.

Tensions rise when Severide (Taylor Kinney) crosses paths with someone from his past.