A few renegades and supporters of Ivar the Boneless, who were branded and banished from Kattegat, come back to seek revenge on the mother of King Bjorn (Alexander Ludwig) in her place of retirement.
Things quickly get out of hand as a dead body turns up in the neighbourhood, women are raped and attacked, and grains and cattle stolen from homes.
Lagertha is shaken by the incident and realises where her spirit lies, quickly digging up her sword and preparing for battle.
Is this a one off, or is Lagertha back on the battlefield for good?
