Prehistoric 10,000 BCE is no place for anyone from present day, but that's exactly where Los Angeles residents found themselves after a sinkhole opened in Season 1 of La Brea. Among those individuals who traveled back in time is Sam (Jon Seda), a member of the US Army who fought in Afghanistan and became a doctor after he returned home. The father of Riley (Veronica St. Clair), Sam also suffers from PTSD, which is getting worse.

Up above, others have been separated from their family, including Izzy (Zyra Gorecki). Despite a combative relationship with her brother, Izzy will do anything to get him and her mother home. Although she lost her leg in a car accident when she was younger, Izzy refused to be left behind when Gavin started investigating the origins of these sinkholes, eventually leaping into one located in Seattle. Izzy bravely followed him in, and when Season 2 picks up, she has been transported back in time and soon finds herself being hunted by a ferocious predator. CBR recently spoke with Seda and Gorecki about trauma, medical conditions, primal animals, and what Sam is willing to do to reunite with his family.

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CBR: Jon, Sam hasn't been forward about his PTSD. With medication no longer available at the moment, how is that going to start causing him problems?

Jon Seda: There is a waning-off process. He doesn't have any backup medication. Plus, there's the fact that he is falling into his thoughts. It's an on-and-off kind of thing. It's not something he finds easy to share with anyone. Sam fills his time wanting to help as many people as he can to get away from his own thoughts. That's something we play with, especially in the first few episodes.

Zyra, Izzy has a disability. How is she handling that challenge in this new environment?

Zyra Gorecki: She's doing fine. She's a badass. [Director] David Appelbaum is really amazing about Izzy not just being about her leg. There's not really a time where it's a huge issue, besides when something happens to her leg. Other than that, she's totally fine. When something does happen to her leg, then they really have to sit down and figure [it] out. "How are going to make this work?" We don't have anything to fix them. The only thing we can do is use what we have on hand, which is everything in 10,000 BC.

Jon, Sam is anxious to reunite with his daughter. In what ways does that spill over to Silas?

Seda: Being a dad myself, you would do whatever you need to do to get to your daughter. If there is someone who happens to have information, or you think has information as to how to make that happen, if they are being a bit stubborn or don't want to give up that information, you might have to take some drastic measures to get that to happen. Sam wants to know how to get his daughter back.

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As an ex-Navy Seal, he must have some unpleasant tricks up his sleeve.

Seda: There is that. There might be some tactical tricks he might resort to in order to get some answers.

Zyra, Izzy starts the series with her mother but is by her father's side right after the sinkhole. How has that changed their relationship?

Gorecki: Izzy has always been a daddy's girl. She has always been on his side through everything. She believed him about his visions. They have kind of gone on this journey in the first season. Throughout the second, she has to find who she is and what she believes in while still maintaining that relationship and still respecting and loving him. As for her relationship with her mom, it's also interesting. It's a weird experience when you are agreeing with one parent, and the other parent feels very isolated. It's very difficult to have a relationship with one parent, especially when the parents are disagreeing… So, there's a lot going on. There's a lot going on with her dad.

Series with dense mythologies are full of twists and turns. When you receive your scripts, how many times have you experienced "Oh crap" moments?

Seda: That happens a lot. Absolutely. I get a script, and I am interested to see what happens. I will read something and go, "I did not see that coming. That is crazy." I say that a lot.

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La Brea Cast

Zyra, do you get that, too?

Gorecki: All the time. The show is so big. There is so much happening. There are so many different dynamics with people. Also, all the animals are trying to kill you. The people are, too. It's constantly, "What? What do you mean this is happening?" It's really fun to read the script for the first time and then to see it play out.

What else has got you excited about this season?

Seda: Last year set the mark by introducing this whole concept and establishing the relationships down there. They set the bar even higher this season. As Zyra was saying, this show is big, and it's gotten even bigger. There's the special effects, storylines, the two worlds colliding, and how they collide is really interesting. I'm looking forward to seeing how they put it all together and how the fans react.

Season 2 of La Brea premieres Sept. 27 on NBC.