“How the little piggies will grunt when they learn that the old boar suffered!” Such words were echoed in this new episode of Vikings, which was appropriately titled “Revenge”. And it was bloody and gruesome as the sons of Ragnar finally got their chance to avenge their father’s death. However, before that took place (during the last ten minutes of the episode), the rest of “Revenge” was filled with sinister deeds, a marriage, a sacrifice, and...