Nick Jandl

Casey and Severide find themselves at odds after Casey argues with him over the best way to save a teenager trapped in barbed wire.

The team partner with `The Sherlocks', a private investigation team, to investigate the murder of a petty officer outside DC.

Juliette hits a career high, including singing a duet with Steven Tyler, but her personal life plummets. Avery takes care of baby Cadence at his parents' home in Texas and Rayna deals with the aftermath of Deacon's liver transplant.

Juliette breaks down during an appearance on Live with Kelly and Michael, prompting Avery's concern. Meanwhile, Rayna is determined to show the world that Highway 65 is not just a vanity project and devises a plan to sign Markus Keen.

Deacon is consumed with guilt when an additional aneurysm leaves Beverly brain dead. Juliette's erratic behavior forces Avery to file for divorce.

Rayna struggles to tend to those around her and deal with Markus' demands. Jeff and Layla argue while Juliette leans on alcohol and pills after experiencing another emotional setback.