Full spoilers follow for Severance Season 2, Episode 4.The Apple TV+ hit series Severance is focused around such a high concept office workers personalities being severed into innies and outies that the viewer will be excused for sometimes forgetting some of the nuances of the world in which these characters live. Thats why this weeks big episode, Woe's Hollow, is noteworthy for its setting alone, as the Lumon Macrodata Refinement team of Mark (Adam Scott), Helly (Britt Lower), Irving (John Turturro), and Dylan (Zach Cherry) finally get the chance to spend some time outside the office. Like, out in the wilderness. Where there are trees and snow and, you know, sky, which is something most of them have never seen. Its a big deal for them! (But no goats.)Also a big deal is several revelations in the episode, including the climactic moment when we learn that outie Helena has actually been posing as innie Helly all season, presumably spying on the rest of the group. And then theres Irvings innie being wiped out of existence apparently?I spoke to the cast as well as creator/showrunner Dan Erickson about Episode 4, so read on for highlights from our chat, or watch the full video at the top of this page.Helena the ImposterWhile weve known that outie Helena Eagan is a fairly awful person (or at least seems to be), the revelation that she has been posing as innie Helly R. comes as a pretty big shock even if some warning signs were there for the most eagle-eyed of fans. Britt Lower explains that while she knew since Episode 1 of the second season that she was actually playing Helena and not Helly, it was still a tricky situation to play as an actor, since the two halves of the severed character are usually depicted as being so different from one another.It was a delicate balance that we all tried to navigate, says the actress. So it was a relief to kind of come back to full Helly R. in Episode [5] because it'd been many months of doing something that was an uncanny valley, I guess, version. But yeah, they just sound slightly different in my head, like different music. Almost like the same musician, but different albums.They just sound slightly different in my head, like different music. Almost like the same musician, but different albums. -Britt LowerLowers costars also had to navigate knowing that eventually this character would be revealed to be Helena, but playing it as if their innies thought it was Helly.I played it as if it was just Helly and kind of reacting to Helly and how she's behaving, explains Adam Scott. I think if we reacted, we were very careful not to tip it in any way possible. I mean, it was really fun to be able to watch Britt play Helly through Helena throughout those episodes and see what she was doing, because it was extraordinary. But in the scenes, just doing whatever I could not to tip it in any way was the most important thing.The Britt part of me felt very bad for tricking my friends, laughs Lower, and Zach Cherry points out that sometimes theyd forget that they were playing opposite Helena rather than Helly. There would be this like, Oh, why did she react that way to that? he says. But it was kind of fascinating to experience, honestly, to watch [her] do that.Woes Hollow: Taking the Innies on a Field TripDan Erickson has wanted to take the innies out of the office pretty much since the beginning of the show, and he finally got his chance with Woes Hollow.It's one of those things you can only do on this show, he says. Oftentimes in TV, you throw the audience in and they don't know the context of something, they don't know what happened, but on this show, the characters can be just as disoriented and confused as the audience and have to figure out how they got there along with the viewer. And so I always had had this idea of a character waking up and suddenly they're out in the middle of... I had always seen it as like an Arctic tundra kind of situation, and they're like, What the hell happened?The showrunner also laughs that while the cast and crew were shooting in freezing temperatures for four weeks, he was in sunny Los Angeles. I was literally out on my deck in the sun, he tells me while the actors growl in his general direction. Just watching the [video] feed and being like, They look cold. They look really cold. I hope they're O.K.PlayIt was cold, confirms Scott.Simply getting to the location for the episode was a challenge that involved taking a van to a parking lot followed by a ride in a four-wheeler up the mountain. Then came the guide ropes and the walk up the mountain.There weren't even roads going up there, recalls Scott. And we'd get up and there's this base camp at the top of this mountain, and we were there for 12 [hours] until the sun went down, shooting. And it was freezing! It was really fun, but really challenging and hard, but in a good, fun way.Lower says it was a month where the actors had a really different relationship to light. Since most of the series is spent under fluorescent lights and lights that can be controlled at all times for this episode it was often a race against the sun.We also got to get out of office attire and wear really incredible costumes that Sarah Edwards designed, laughs the actress. And for me personally, it was nice to not be in pantyhose and heels for once.What to Watch on Apple TV+How Will Severance End?Were not even halfway through Season 2, and surely Severance has a lot more story left to tell, but at the same time, Erickson says that he does have a good sense of how the show will eventually end.I have an end point that I've kind of always had in mind. -Dan EricksonI have an end point that I've kind of always had in mind, says the showrunner. I have a scene that I think of as sort of the end point for a particular character, and then sort of on a story level in terms of what Lumon is doing. A lot of that is stuff that I've pretty well had in place. Some of it's changed, and I think that that's part of the process because you have to be able to be flexible enough to fall in love with certain elements of the show that you didn't expect and weave those into the greater story.He points to Breaking Bads Jesse Pinkman character, who was originally supposed to die in Season 1. Obviously things didnt work out that way, and its hard to imagine the show being what it became without the continued involvement of Jesse.They just realized like, no, we need this guy. This guy is integral to the DNA of the show, says Erickson. So stuff like that has happened, but I know where [the end] is and there are certain dots along the way that I know we want to connect, but definitely leaving a lot of flexibility in terms of how we get there because that's part of the fun.PlayHow do you think Severance will end? What is your craziest Lumon theory? Lets discuss in the comments