It's time for a family feud on Vikings.

Actress Explains Character's Tragic Death On 'Vikings', Who Died In 'Scarred'?

Ragnar (Travis Fimmel) will lead his warriors back Kattegat in "Usurper" only to find that all is not well in the settlement. From Siggy's (Jessalyn Gilsig) death to Kalf's (Ben Robson) overthrow of Hedeby, episode 5 promises plenty of drama for the Norsemen. Rollo (Clive Standen) and Bjorn (Alexander Ludwig), however, will up the tension when they decide to go head-to-head in a very public fisticuffs (see video here).

The pugilists will take their problems into the rain, eschewing weapons for brute strength as the rest of Kattegat watches from the sidelines. Despite the bloody, muddy nature of the altercation, Bjorn seems to have his reservations when it comes to battling his uncle.

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And why wouldn't he? After the events of "Scarred," one would expect Ragnar's son to seek a fight with the King rather than his sympathetic uncle. The cause of the Lothbrok's altercation, however, has yet to be revealed.

Could it have something to do with the dark prophecy the Seer (John Kavanagh) will weave for Rollo? Find out more when "Usurper" airs March 19.

Vikings airs Thursdays at 10 p.m. ET on the History Channel.

Tags: vikings television history channel