Vikings Comic-Con trailer declares war on the whole world 

WATCH: Vikings: Katheryn Winnick teases faceoff with Lagertha, Queen Aslaug

'Vikings' finale: Michael Hirst on what's next for Ragnar and his sons

season 4 radically changed the world around Ragnar Lothbrok (Travis Fimmel), with a major time jump forward. Now, all of Ragnar’s sons are grown — and they have big plans.

Comic-Con panel, those plans come to fruition. While Bjorn (Alexander Ludwig) sets off toward the Mediterranean, little Ivar’s (James Quinn Markey) ambitions are even larger. At one point, he tells his newly-returned father that they’ve “declared war on the whole world.”

Meanwhile, Lagertha (Katheryn Winnick) plots some vengeance, Rollo (Clive Standen) yearns for the old days of raiding, and King Ecbert (Linus Roache) has grown a mean beard.

Winnick stopped by EW’s studio earlier in the day and teased that Lagertha would soon be clashing with Queen Aslaug (Alyssa Sutherland). “It’s going to be a cat fight. The two power women go head to head,” she said. “It’s a really interesting scene because you don’t expect what happens.”

See the trailer above and watch the cast’s visit to EW’s studio below.

Entertainment Weekly is on the scene at San Diego Comic-Con. Go inside with all our coverage, available here.

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