Nick Jandl

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

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 Grand Ole Opry honours Rayna on a special anniversary, so she asks Deacon and her daughters to sing with her.

Rayna tries to help Deacon, but her efforts backfire. Meanwhile, Scarlett prepares to open for Rascal Flatts, but her past problems make her fear performing again, Layla grows confused about her relationship with Jeff and Sadie winds up in danger.

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.