The 100 moment we've all been dreading is finally upon us.

Octavia (Marie Avgeropoulos) and Bellamy (Bob Morley) are the only two siblings to fall with the Ark, but the ground has slowly stripped their close-knit relationship down to nothing. Over the last few episodes, the elder Blake has worn down his familial good will with his anti-grounder stance. Bellamy realized his mistakes too late, and while Kane and Sinclair made it out of Arkadia alive, Lincoln (Ricky Whittle) took the fall.

New photos for "Fallen" hit the Internet over the weekend, and Bellamy is sporting a whole new batch of cuts and bruises. Octavia's revenge will be swift, and she might even go so far to put her brother's life on the line. While Ocatavia could take her anger out on any number of Pike's (Michael Beach) former accomplices, she'll focuses rage on Bellamy for one very good reason.

"Even though there are so many other people involved, he's the focal point for Octavia. The reason she's so upset by these things, and it comes about later, is because that's her brother," Morley told EnStars at WonderCon. "She could take it out on X,Y, and Z [and] other people that might have been involved. You have Monty involved and Bryan involved, but it's taken out on Bellamy because they are that close and because they're siblings."

Bellamy is clearly no longer on Pike's side 100 percent, but that doesn't mean all of Arkadia is ready to turn against their Chancellor.

"Pike was elected in a landside. He had the majority vote of everyone. He was in jail when they elected him, that's how much power and support he had from the people of Arkadia," Morley explained. "In the show the responsibility seems to fall on Bellamy a lot to overthrow him, but, as a viewer, you should ask yourself, 'why isn't anyone else doing this?'"

Find out more when The 100 airs Thursdays at 9 p.m. ET on The CW. Click the video below to see a preview for the series' next episode.