On the Eve is the nineteenth episode of the fourth season of Vikings. It is the forty-eighth episode of the series overall. It first aired on January 25, 2017. It was written by creator Michael Hirst and directed by Ben Bolt.


The Viking Army causes panic in the English countryside as King Ecbert and Aethelwulf plan the defense of the realm. Kattegat is put under siege by Egil. Bjorn and Ivar fight over control of the Great Heathen Army.


Kattegat is attacked by Egil and his men, but they are repulsed and Egil is captured, Torvi is injured while defending the city. Under torture, Egil confesses to Lagertha that he had been paid by King Harald to attack her. Meanwhile in Mercia, terrified villagers flee before the advancing Great Heathen Army. Harald pretends to forgive Ellisif, then kills her husband Vik. Ellisif later pretends to forgive Harald, seduces him, and is about to kill him but is killed herself by Halfdan. Aethelwulf gathers a large army in Wessex and moves to intercept the advancing Vikings. Before they meet, Ivar persuades Bjorn to scout a potential battlefield and plan to use the terrain to defeat the Saxons. The following day, the Vikings surprise the Saxons by ambushing them from the woods on each side of the battlefield, until they have them surrounded near Repton.



Guest Starring

Additional Cast (in order of appearance)


Episode Deaths


  • This episode marks the death of Bishop Unwan, advisor of King Aelle, as well as the death of Princess Ellisif and her husband Vik. Egil died off-screen from his wounds or execution.
  • It seems King Ecbert is loosely quoting from the song "Turn! Turn! Turn!" written by Pete Seeger and made famous by The Byrds when Prince Aethelwulf is leaving for battle. But in fact he is quoting the Bible, the lines come from the book of Ecclesiastes, as found in the King James version of the Bible.



Community content is available under CC-BY-SA unless otherwise noted.