Synopsis:

After her life-changing experience, Rayna scrambles to write one more song for the concept album with Deacon; Juliette's leg starts to hurt inexplicably; Gunnar fights for Scarlett.

(From CMT)
After her life-changing experience, Rayna scrambles to write one more song for the concept album with Deacon.

(Recap From CMT)
(Recap From Wikipedia)
Rayna has a shattered pelvis and hip from the crash, and has to have four hours worth of surgery. Seeing her mom lying in the hospital bed, on meds, waiting for surgery, makes Maddie sick. Juliette being Juliette goes against orders from the desk nurse and sees Rayna. Daphne doesn't want to go to her concert at school because Rayna can't go now, and says that Rayna is the only one who cares about her. Juilette is having problems of her own, with her leg bothering her. Laying in her hospital bed, Rayna sees her dead mother, and is talking to her. This freaks Deacon out and worries him because he knows people experience stuff like this before they pass away. The doctor tells him not to worry. Daphne's choir comes to the hospital to support her, and they all sing for Rayna. During this, she crashes and is sent to the ICU. Her organs are failing, and her outcome isn't too promising. She can't hold on any longer, and dies with everyone at her side.