“Outlander” fans better be ready for a lot more Fraser, because in Saturday’s (April 25) episode the Starz series is heading to Lallybroch. There viewers will get their first real introduction to Jamie’s sister Jenny (Laura Donnelly) and her husband, Ian (Steven Cree).

More after the jump! 

“They’re pivotal characters, and so we’ll spend two full episodes at Lallybroch with Jenny and Ian and get to know them and sort of the family dynamics, and sort of see the family that Jamie left behind and what’s his place at Lallybroch and being the laird now and all that kind of stuff,” showrunner Ron Moore tells  Zap2it.

As fans will learn, Jamie’s brash nature runs in the Fraser family. It’s been a while since Sam Heughan’s character saw his sister, and according to the actor, “There’s a lot of things that they need to get straight, because they’re both headstrong. Jenny is extremely headstrong; Jamie’s very stubborn. There’s a real head-to-head there.”You see the reason why Jamie was reluctant to go home and take Claire [Caitriona Balfe] there, why he feels he can’t,” Heughan notes. “This part of the season, I’m not saying it’s Jamie’s part, but we find out a lot about Jamie this part of the season. You find out his relationship with his sister and his father and we have a lot of flashbacks to … [when] he’s being flogged for the first time. ”

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Even though Jenny and Ian will only appear in two more Season 1 episodes, Moore promises much more of the married couple in the future. “We will get back to Jenny and Ian in subsequent seasons, and they will become much bigger players in the show as the seasons unfold,” he says. “But those two episodes are really pivotal to introduce the audience to them and to their world.”

Viewers will find the Lallybroch storyline is very true to “Outlander’s” source material, but author Diana Gabaldon does acknowledge one major deviation from her novels: The house itself.

“It’s a beautiful location. It’s very convincing. It’s not as I imagined it, because I was imagining a much more traditional 18th century house,” she tells Zap2it. “That particular building that they use is actually from the 1500s, so it’s a much older construction — but there’s nothing wrong with it at all.”