'Outlander' Stars Caitriona Balfe, Sam Heughan & More Spill Behind-the-Scenes Secrets (PHOTOS)

Kate Hahn

"It’s our biggest year by far," says Outlander production designer Jon Gary Steele of the spectacular sets and stunning locations showcased in Season 4 of the Starz drama, in which time-traveling Claire Fraser (Caitriona Balfe) and husband Jamie (Sam Heughan) settle in the New World.

"We shoot in Scotland, but it has to be total Americana." Steele’s team built an entire colonial town, a Southern plantation house and the Fraser homestead in tartan territory.

'Outlander' Season 4: Sophie Skelton & Richard Rankin Tease Singing, Dancing & Danger! (VIDEO)

'Outlander' Season 4: Sophie Skelton & Richard Rankin Tease Singing, Dancing & Danger! (VIDEO)

Are Bree and Roger the next 'Outlander' power couple? Maybe. Are these two actors completely adorable? Definitely.

To make the cast fit into their surroundings, costume designer Terry Dresbach, who made upward of 1,000 ensembles, researched Colonial Williamsburg for inspiration on 18th-century ladies’ dresses — and drew on her personal experience for the 1970s styles worn by the Frasers’ daughter, college student Bree (Sophie Skelton).

In the December 16 and 23 episodes, Bree drifts further from her boyfriend, Roger (Richard Rankin), while her parents mingle with British colonial leaders.

Click through the gallery above for a behind-the-scenes look at Season 4 filming!

Outlander, Sundays, 8/7c, Starz