Keith Kupferer

To regain control of the work team and restore their chances of escape, Abruzzi convinces Michael to tell Falzone where he can find Fibonacci. Meanwhile, as Nick and Veronica wonder where Steadman's money went, the Vice President brings in an FBI crony to track them down.

Casey gives Cruz an ultimatum that could put the latter in prison, while Shay and Clarisse take drastic action to win custody of Clarisse's baby.

Severide puts his job on the line to help out one of their own; Kidd navigates Natalie's complicated relationship with her sister; Herrmann prepares to take the Chief test.

Kidd strengthens her bond with Natalie during a road trip; Severide investigates a car fire and uncovers surprising evidence; Violet receives a career opportunity after being featured in a local newspaper.

District 21 launches a full-scale investigation after Halstead is attacked by an armed gang while working his off-duty security job.

Severide gets wrapped up in an Illinois State Police investigation after discovering illegal guns on a call. A bird harasses Mouch on the apparatus floor. Kidd keeps an eye on Carver as his attitude worsens.