Season six returns following the battle between brothers which has left Bjorn victorious and a hero to the people who have been under the tyrannical rule of Ivar. Meanwhile, Ivar, searching for a new path to separate him from his past, is seen traveling to Russia. He meets his match in Prince Oleg, a ruthless and unpredictable Russian ruler, who shocks even Ivar with his merciless actions. While Lagertha has her own agenda - to live a quieter and less public life on her own farm, but new dangers lurk close to home. .