The second season of Nashville picks up after the car crash that ended season one, revealing that both Rayna and Deacon survived, but Rayna has to be put into a medically induced coma. Deacon does not remember the crash, admits to driving, and is taken to jail. Obviously, neither of these things remain permanent, but the effects last throughout the season. The show basically then goes into the prime-time soap opera mode with the relationships of the various characters, platonic and otherwise, being front and center. One of the best storylines of the season involves Will (Chris Carmack) partially coming out, yet still trying to hide and maintain his public persona.
For those who get the DVD set, the extras are pretty light. The most substantial one is a feature on the music, where the stars of the show perform for a live crowd and the performers and songwriters discuss the songs. Then there are deleted scenes and a blooper reel. So, while there are no commentary tracks and a ton of making-of featurettes, what was included is good.
Overall, I'd say if you like season one, you will like season two. It is, most definitely, a soap opera that also happens to include musical numbers. Like any soap, daytime, or primetime, the relationship arcs can get a bit silly, but for the most part, I do think the storylines are well-written and not too over the top. The acting is great, with the entire cast giving great performances, and the music, even for people who are not otherwise fans of country music, is very good. I think the show does a good job of being authentic with the music but also choosing numbers that will appeal to more than just the hard-core country music fan base.