Sound systems, mobile reggae clubs, are travelling back and forth across Europe to play the latest singles and compete against eachother in style and skills. Fifteen years ago, love brought Daddy Boastin, Fabulous and Isa from the West Indies to Sweden. Together with the Swede Flash, they run Trinity, one of the counrty's best known sound systems. Trinity stick to their culture all day all year. They're living their own Stockholm version of the West Indies in Hässelby, Rotebro and Bagarmossen. They offer their audiance a peace of the caribbean, and represent Sweden in reggae clubs around Europe. Outernational is a story of identity, dreams, belonging and faith, and a journey into a growing subculture.