Viking's Bjorn is no longer the small child who wanted to sacrifice Athelstan to Thor, and his coming of age will set up conflict among the Lothbroks.

'Vikings' Season 3: Which Major Character Will Die?

Thanks to history, viewers know that Bjorn (Alexander Ludwig) will ultimately become more powerful than his father, Ragnar (Travis Fimmel), and season 3 will start to tease the young warriors future as a man.

"It's definitely been a coming-of-age story," Lugwig explained to Zap2It. "Historically, this character goes on to do some pretty incredible things, so I think we're setting up him coming into his own and becoming a man."

'Vikings' Season 3: Why Is Lagertha Covered In Blood?

However, Bjorn won't suddenly become his father's equal over night. While the eldest Lothbrok boy respects his father, conflicts will slowly arise between the two.

"You just read these great scripts [by Michael Hirst] and he's already implemented that slowly in the third season and you'll see that," Ludwig told TV Fanatic at the 2014 San Diego Comic-Con. "He was a boy in the second season and I really tried to play that...and in season three he's a man. You see him learning and really taking after his father."

Find out how Bjorn fares when Vikings returns to raid Paris in 2015 on the History Channel. Click the video below to see a new trailer.