‘Major changes in infrastructure.’
The hit History seriesVikingsreturns Thursday for another season of head-choppin, kingdom-conquerin, world-discoverin high drama.
So she ends up sharing the Earldom with him.

Credit: Jonathan Hession/History
Of course, shes a Viking, and has her own motivations of where she wants to be.
Things are gonna happen.
There will be major changes in the infrastructure there, some big deaths, some incredible battles.
What do you think is really driving Lagertha now?
What are her ambitions focusedon?
You have to remember that Lagertha started off as a farmer, on a tiny farm in Kattegat.
She struggles with being an Earl, with being a woman in a position of strength, being betrayed.
How does she get control back?
How does she deal with her sexuality?
How does she deal with her family?
Theres a lot of complications.
Definitely, especially towards the latter half of the season.
Theres going to be a big shift, as youll see towards [episodes] 15-16 of our season.
Theres gonna be a big transition with each character, not just Lagertha.
Are you still working on season 4 right now?
We have double the amount of episodes this year, 20 episodes.
So were down right now shooting the last two right now.
How did that change the production schedule for you?
We went from working five months, to going onto ten!
[Laughs] Were officiallyinIreland.
I think Ive lived here more than anywhere else now.
We definitely needed more winter clothes here.
You get to know your local pub really quickly.
Last years Paris battle blew me away in sheer size and scope.
Is there anything like that this season?
Theres going to be a lot of action this season.
Blood and dirt and mud and horses!
We dont have it easy.
Were under the elements of Ireland.
Were shooting through the rain, sometimes, for 14 hours.
Theyve had an interesting relationship up until now.
When Ragnar cheated on her, I dont believe Lagertha ever blamed Aslaug, the other woman.
In this season, things have changed, for sure.
And that will be even more explored as the episodes unfold.
It was one of my favorite scenes to shoot this season.
Vikingspremieres Thursday at 10 p.m.