After his marriage proposal goes horribly wrong, Uncle Drank buys a boat and takes a job at a corporate event in Hawaii where he meets wife number five... Stella. He writes a song with the Informer himself - Snow - and they hit the top of the charts with “Aloha I Love You.” Drank keeps fighting with the record label about his album and his new nemesis - a grunge-country singer named Cody Tacoma. And then... Uncle Drank disappears. Brian Kelley does his best to track him down in Mexico - and what he finds out will bring us to next week's epic series finale…