VIKINGS CASTTHE INDEPENDENT FAN GUIDE
Season 5 · Episode 20 · The fan guide

Ragnarok

Vikings season 5, episode 20, Ragnarok: Bjorn’s attack on Kattegat is aided by Freydis, who turns against Ivar.

What happens in Ragnarok?

Spoilers for this episode and earlier events.

Freydis’s knowledge helps break Ivar’s control, showing that the vulnerability inside his household matters as much as the opposing army. The ceremony around Bjorn’s accession connects a new ruler with the family’s existing symbols of legitimacy. Ivar survives the defeat, so the change of ruler closes one campaign without resolving every claim or grievance.

Season & episode
Season 5, episode 20 of 20
Series order
69 of 89

Story connections: Bjorn Ironside, Ivar the Boneless, King Harald Finehair and Lagertha.

Identify a face in this episode.

Episode references: HISTORY season guide.

Ragnarok — Vikings season 5, episode 20
Vikings · S05E20 · Ragnarok

Key events and consequences

Freydis's knowledge gives the attackers an opening that force alone has not supplied. Ivar's killing of her shows the personal cost of that break in loyalty, while his escape prevents the victory from ending every dispute. Bjorn's accession acquires the family's symbols of legitimacy without answering how he will use them.

  1. Freydis’s knowledge helps break Ivar’s control, showing that the vulnerability inside his household matters as much as the opposing army.
  2. The ceremony around Bjorn’s accession connects a new ruler with the family’s existing symbols of legitimacy.
  3. Ivar survives the defeat, so the change of ruler closes one campaign without resolving every claim or grievance.

Key characters

Bjorn Ironside

The ceremony around Bjorn’s accession connects a new ruler with the family’s existing symbols of legitimacy.

Character story

Ivar the Boneless

Freydis’s knowledge helps break Ivar’s control, showing that the vulnerability inside his household matters as much as the opposing army.

Character story

King Harald Finehair

Character story

Lagertha

Character story

Ubbe

Character story

Magnus

Character story

Freydis

Freydis’s knowledge helps break Ivar’s control, showing that the vulnerability inside his household matters as much as the opposing army.

Character story

Locations and story geography

Kattegat

Freydis's aid helps the attackers breach Ivar's control, turning the home port into the setting of another transfer of rule.

These are places in the story. For the real landscapes used on screen, explore the filming-location guide.

The episode breakdown

The finale distinguishes holding walls from sustaining allegiance. Ivar can defend a city, but the system around him fails when an intimate witness no longer supports his account of himself. Bjorn’s ceremony offers a different public story, built around inheritance and recognition. That is a meaningful change without being a guarantee that rule will now be simple. On a rewatch, compare the sword passed to the new king with the cart carrying the defeated one away: both images send a person into an uncertain next chapter.

Themes to follow

  • Control of walls differs from loyalty within a household
  • Recognition gives a new king a future to answer for

Where the episode leaves us

What will Bjorn do differently now that he holds the kingship?