While it doesn't come as a surprise, the drama has been fully kicking off in Outlander: Blood of My Blood. Without giving too much away, episode 5 of the Starz show followed Julia (Hermione Corfield) losing her carefully assembled allies after the spilling of secrets, Henry's (Jeremy Irvine) little hope that he has left starting to slip away, and Ellen (Harriet Slater) and Brian (Jamie Roy) having a lovely time celebrating Beltane. Lucky for some.We've still got no idea how, or if, the original Outlander cast are going to directly cross-over with Outlander: Blood of My Blood (though it is technically possible), and with another five episodes still to go, we can't rule anything out. But when I had a chance to ask Irvine and Corfield exactly what that might be, surprises are coming much sooner than we first thought.Next week's episode 6 is going to be a particularly challenging one – both for us watching and when the cast initially filmed it. Outlander: Blood of My Blood fans should particularly keep an eye on on Julia, who's about to have "one of her biggest episodes."Julia has her most challenging moment yet in Outlander: Blood of My Blood episode 6The full cast of Outlander: Blood of My Blood. (Image credit: Starz)"That was a big one for us. We both sort of hit rock bottom," Irvine tells me, gesturing to Corfield, "You really had a tough one.""I did. She goes through a lot of that episode," she replies. Corfield had previously explained to Collider, “Episode 6, for me, was one of my biggest episodes, I would say. It's quite contained. That was a real acting exercise. After I finished that week of filming, because I think we just did it all in one week, because it's basically one massive scene, I got to the end of that week, and I went, ‘Oh, I feel like I've really left it all on the floor.’"And I think that settled me into it. Because I think when you have something that's got a real rich acting exercise piece, then I think once you've done it, you feel such satisfaction and you're like, ‘Woohoo, I've done it.’”Irvine continues in our conversation, "It's rare to see Hermione looking tired, but at the end of that week was a different story. The scenes that tough, they're often the ones that we enjoy the most. You get to do proper acting."What on earth any of this means for the next episode of Outlander: Blood of My Blood remains to be seen. We've seen Henry and Julia both be pushed to the brink individually, but with their blossoming love built on such strong foundations (I'm still not over the love letters), it feels unlikely that the pair will split.However, it's entirely possible. We know Claire (Caitriona Balfe) has already been born by this point in time, and that's prompted a slew of fan theories that may actually have some weight to them.Popular theories currently include meeting Claire’s parents in Outlander season 8, which wrapped filming in September 2024, Julia’s baby (not Claire) being somebody we’ve already met in the main show, and Jamie’s dad Brian being more closely linked to the pair than we’ve been led to believe.Will we see any of these in episode 6? Unlikely, but I bet Julia's unspoken challenges leads us directly into the drama of season 2.You might also likeSullivan’s Crossing star says she’s game for a ‘fun’ Virgin River crossover episode and I think she’s a geniusNetflix star rules out wild fan theory about her character in Sweet Magnolias season 5: 'I'm not wearing a pregnancy suit this season'I asked a major Netflix star if you should ditch the streaming service for Hallmark+’s romance dramas, and the answer might surprise you