What's it like to jump aboard a successful show like Vikings while it's already on the move? To find out, Liam travels to the Wicklow Mountains and catches up with actress Georgia Hirst, who started on the show in season 2, and Adam Copeland (formerly WWE's 'Edge'), who is joining Vikings for Season 5. Plus, Einar Selvik, whose band 'Wardruna' has composed music for Vikings, talks about creating the sound of a culture no one has ever heard.