You can take the man out of the north, but you can't take the Northman out of the man.
When Vikings returns, it's obvious that Rollo (Clive Standen) has some regrets about abandoning his Viking lifestyle in favor of Frankish nobility. "He's become someone else, but what he discovers in Season 4B is you can never take the Viking out of people," creator Michael Hirst tells TVGuide.com. "And he has to deal with that."
So how exactly does Rollo handle that? By betraying his family once again - but this time, it's his Frankish family who are the victims. Rollo turns his back on them in order to return to the seas and sail the Mediterranean with his estranged nephew Bjorn (Alexander Ludwig).
But the decision may be a bad one for more reasons than a lack of loyalty. If you expect this to be a happy family reunion between uncle and nephew, then you clearly visited the wrong Seer.