The last ever 10 episodes of Vikings are streaming on Amazon Prime now. The historical drama series is inspired by the sagas of Viking King Ragnar Lothbrok (played by Travis Fimmel) and his sons. In a shock twist, Ragnar was killed off in season four of Vikings and fans have been hoping for his return ever since. Did Ragnar Lothbrok really die in the series? Will he return? Sadly for Viking...