On the 100 , we’ve seen Lexa (Alycia Debnam-Carey) be merciless and unwavering when making decisions, we’ve seen her order executions and we’ve seen her push one particularly irksome Ice Nation representative out a window - but until now, we haven’t actually seen Lexa in a true fight.

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Alycia Debnam-Carey as Lexa in The 100.

Zach McGowan as Roan in The 100.

That will notably change in this week’s new episode, “Watch the Thrones,” as Lexa takes on Roan (Zach McGowan) in a big, public battle, with plenty at stake.IGN has an exclusive clip from the episode from this fight scene – a sequence it’s safe to say fans will be talking about afterwards. Check it out below!I recently spoke to both Debnam-Carey and McGowan about filming their fight scene. Debnam-Carey noted it was important to finally see Lexa in action, "And actually prove her strength and the reason why she’s hailed as so strong as the Commander.”Debnam-Carey had high praise for her co-star, who’s quite experienced with action scenes at this point, thanks to his ongoing role on Black Sails.“Zach makes me look so much better than I am, so thanks to him I look much better sword fighting, but it was so fun," said Debnam-Carey. "It was very fast paced and the stunt team was so great to organize time where we could learn it. I was so excited. I always wanted to do a fight scene – a sword fight! It was the first time I’ve ever done one. We did it over a day and I was sore for like three days after. But it was great.”McGowan said he felt Debnam-Carey was a quick student, exclaiming, “She did such a great job, Alycia! She was really scared about it. She was like ‘Dude, I’m fighting you and I don’t know how to sword fight!’ It was our first training session together and she was much better than she was giving herself credit for and she was like, ‘I don’t know, am I remembering it?’ I said, ‘You used to be a dancer, clearly, right?’ And she goes, ‘How did you know?’ I told her, ‘Because you can memorize the move. This is all this is. We’re going to do a dance together and make it look like we’re hurting each other but we’re not going to hurt each other.’”“It was really fun and it was fun to do it and I think as a father of daughters, I love all these badass women these days," McGowan remarked. "I was just watching Star Wars and I brought my daughter to it and was like, ‘Look, here’s this young female, Jedi Knight you can now aspire to and you can decide whether you want to let the dark side of the force take you or the light side of the force and you can explore those things.”

The 100: "Watch the Thrones" airs Thursday, February 10th on the CW.Eric Goldman is Executive Editor of IGN TV. You can follow him on Twitter at @TheEricGoldman , IGN at ericgoldman-ign and Facebook at Facebook.com/TheEricGoldman