02:28 — Get caught up with King Ecbert's journey so far in Season 4 with Linus Roache in this web exclusive.
02:31 — Get caught up with Lagertha's journey so far in Season 4 with Katheryn Winnick in this web exclusive.
02:27 — Get caught up with Bjorn's journey so far in Season 4 with Alexander Ludwig in this web exclusive.
02:35 — The cast of "Vikings" discusses how the show celebrates and represents the cultural history of the Viking way of life in this web exclusive.
02:18 — Ragnar falls deeper into his addiction to Eastern medicine in this scene from Season 4 Episode 7, "The Profit and the Loss."
01:50 — Scholars and historians discuss the weapons favored by the Vikings and how they influenced Viking battles.
02:29 — Scholars and historians describe what items were necessary and valuable to Viking traders.
01:59 — Did Ragnar Lothbrok actually exist? Scholars and historians explain what we know about the man - or men - who inspired the character.
Watch highlights from Season 4 Episode 5, “Promised," in this web exclusive.
01:21 — Bjorn fights for his life in the Viking wilderness in this scene from Season 4 Episode 3, “Mercy."
Rollo helps the French with a military strategy to defeat the Vikings' ships in this scene from Season 4 Episode 2, "Kill the Queen."
02:02 — Find out what you can expect from Vikings: Season 4.
01:05 — Rollo's marriage to Gisla is hitting more than its fair share of bumps
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- Premiered: March 3, 2013
- Rating: TV-14
- Premise: Chronicling the medieval adventures of a band of Norsemen. (more)
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Rollo's marriage to Gisla is hitting more than its fair share of bumps