The whole Brazil subplot
In my opinion, the whole story line taking place in Brazil was completely unnecessary. It didn't add anything to the show. I think they just threw Brazil in there to make honor to the 2014 World Cup and the upcoming 2016 Rio Olympics.
Roar's Brazilian bride was a character I absolutely despised. I mean, why become engaged to a foreigner you're not even in love with and possibly not even attracted to? It's not like he was rich or anything. She was very quick to cheat on him with Frank/Johnny and quickly ignored him once she got established as Frank's and then as the other NY thug's girlfriend. She came across as being very easy and as kind of a whore. And what was up with her all of a sudden being all spiritual and trying to find her "inner angel" or whatever the hell she did at the end? I still hated her for what she did to Roar. I mean, why couldn't an average Joe like Roar end up happily ever after with an attractive woman who was clearly out of his league for once? Also, what was the deal with Roar briefly becoming a telenovela actor? Completely ridiculous and irrelevant to the show! The whole subplot about the Brazilian thugs doing drug business with some obscure thugs in Norway didn't make too much sense to me either. The whole plot involving Brazil felt like it was written in a rush and just to add a few more episodes to the show. I just think Brazil as a whole should have not been included on season 3, period. The show is only about NYC and Norway, that's it. Those are the only two places that make sense to the story line.