Rayna and Deacon face the facts of their relationship Scarlett makes an unexpected discovery about herself Gunnar performs with Elton John Luke makes an appearance on "The View" Layla launches her new album.
Luke invites his old friend Riff Bell to accompany him on tour a newcomer arrives at the Beverly but Deacon, Rayna and Frankie are divided on whether she deserves a shot.
Deacon and Rayna are ambushed by paparazzi after their wedding rehearsal dinner, forcing them to consider a change of venue Juliette forces Avery to lie to the press in her absence.
Markus is not prepared for a televised concert in support of his new album launch Luke is faced with another setback Deacon and Rayna face a decision.
Markus scraps a song off his new album a week before its release Luke tries to fix things with Colt Scarlett gets time off her tour and surprises Caleb in Nashville.
Maddie receives an offer that Rayna wants to turn down Luke desperately tries to regain Colt's trust Gunnar's girlfriend causes problems with Scarlett in need of money, Avery works on insipid jingles.
Rayna's concern about Deacon's business venture with a friend from AA causes friction Luke's integrity and his relationship with Colt are in jeopardy.
When video of Juliette getting in an altercation with a fan goes viral, Jeff takes advantage of the situation Maddie misses Colt Rayna and Markus disagree about his sound.
Rayna is unhappy with Layla and Jeff's relationship Markus disagrees with his producer when Maddie joins Colt on tour, she turns to Juliette for advice Gunnar turns to Kevin and Will for help picking up a woman.
Juliette is back on top following her performance high above highway 65 while Deacon's cancer diagnosis becomes public and he and Rayna grapple with what the future holds.
Jade throws a Malibu beach party, Juliette gives an impromptu rooftop concert and Rayna tries to save Deacon's life.
It's the evening of Teddy's “note by note” gala with Rayna, Deacon and the girls ready to perform, but before they can, Deacon receives the call he's been waiting for.
Grammy Award®-winning music sensation Christina Aguilera guest stars as Jade St. John.
Juliette's baby shower is a bust, and indie sensation Ron Pope guest stars as himself.
Rayna promises to help Deacon battle his illness and Sadie faces her past head on.
Deacon is forced to make a decision about his treatment and Rayna searches for new Highway 65 artists.
Rayna is floored by edgehill's plans to sign Maddie as a solo artist.
Deacon comes to terms with his illness and Rayna prepares to return to the stage.
Juliette is the reigning queen of country, though her title is being overshadowed by Rayna's return to music city and a reality show standout nipping at her heals.
Deacon and Rayna try to heal their wounds after their traumatic crash.