Hvitserk is severely tested; Floki makes an amazing discovery; Freydis gives Ivar a surprise; Ubbe negotiates with the three Danish kings who have massed their armies in Reading, but the negotiations may have a perilous outcome.
- Katheryn Winnick as Lagertha
- Gustaf Skarsgård as Floki
- Alexander Ludwig as Björn Ironside
- Peter Franzén as King Harald Finehair
- Alex Høgh as King Ivar the Boneless
- Marco Ilsø as Hvitserk
- Jordan Patrick Smith as Ubbe Ragnarsson
- Steven Berkoff as Olaf the Stout
- Adam Copeland as Kjetill Flatnose
- Ferdia Walsh-Peelo as King Alfred of Wessex
- Georgia Hirst as Torvi
- Jennie Jacques as Queen Judith
- Erik Madsen as King Hemming
- Roisin Murphy as Queen Elsewith
- Ragga Ragnars as Gunnhild
- Dean Ridge as Magnus
Aditional Cast (in order of appearance)
- Connor Rogers as Canute
- Eve Conolly as Thora
- Kelly Campbell as Ingvild
- Sandra Voe as Witch
- Alicia Agneson as Freydis
- Jamie MacLachlan as Aldwin
- Clodagh Downing as Midwife
- Markjan Winnick as King Angantyr
- Gavan O Connor Duffy as King Frodo
- The title of this episode references the name of Ivar and Freydis' child.
- Ragnar appears in Lagerta's hallucinations, as well as King Ecbert and King Aelle briefly.
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