Lexa died, Becca's AI 2.0 was revealed, and the origin of the Grounders' Commandership was explained.

The 100 Season 3 Episode 7 was a tremendously important episode of the series as a whole, marking a turning point by killing off one of its most popular characters. Death has hit very close to home for the characters of The 100 more than once before, but the impact was not nearly as great as the fallout from Commander Lexa's demise will be (sorry, Wells, Finn, etc).

Join TV Fanatics Allison Nichols, Meg Bonney, Paul Dailly, and Caralynn Lippo as we chat about Lexa's death, Becca's AI, and the origin of the Commander.

Lexa is dead. How are you feeling about it – the circumstances, plot implications, etc.?

Allison: The circumstances surrounding her death were terrible. She just had sex with Clarke, and then died by a stray bullet. I mean, really? Lexa deserved so much better. She deserved to go out like the warrior she is.

Meg: It is such a bummer. I knew she wasn't going to be on much the rest of the season because she has other commitments, but I was hoping she would just leave for a while. Now that we have seen the plot with the Flame chip, it makes sense. How could they introduce that story without her dying? But it doesn't make it suck any less.

Paul: Surprisingly, I'm OK with it. I knew it was coming purely because the actress is contracted to Fear The Walking Dead. She was one of the best characters on the show, so her demise was sad. It has paved the way for more storytelling avenues.

Caralynn: I'm torn. The circumstances of her death was terrible. They were telegraphing it pretty heavily that Lexa was going to die (if I'd had to hear Titus grunt "Blood must have blood" one more time, I was going to just start muting the TV whenever he opened his mouth).

At some point, the foreshadowing of her death felt so obvious that I became convinced the show wouldn't actually go and do something that obvious. Like Meg, I was hoping she'd be written off (deposed and replaced with another Commander, maybe), but obviously that wasn't doable with the mythology they decided to create around the Commandership/AI.

Lexa also had Becca's AI 2.0 implanted in her neck! React.

Allison: This was the best thing to come out of Lexa's death. Lexa stating she hears the previous Commanders talking to her in her sleep suddenly made sense. Now, the City of Light and ALIE are much more interesting. I need to know how an AI exists inside of someone.

Meg: I love this! Finally a reason to care about the Jaha story and all of his yammering. I think it will be really interesting to see who is chosen next and if that person retains some of Lexa's qualities.

Paul: It was a great twist and it was fitting to see it make this Jaha storyline worthwhile.

Caralynn: It was so cool! I suspected what was coming once we saw black blood dripping in the flashback at Polaris, right before Becca hightailed it down to Earth, but the reveal was still incredible. I'm dying to see where this story goes.

By the end of the episode, Murphy and Clarke are trapped in Clarke's room at Polis, as Indra and Octavia are headed towards Arkadia. What's coming next in the Grounders vs. Sky People saga?

Allison: I don't know. A lot of it is going to depend on who takes over as Heda, and what his/her view of Skaikru is. If the new Heda hates Skaikru, well then it doesn't matter what goes on in Arkadia because Skaikru is screwed. If we get a new Heda who is following Lexa's lead, then it will be up to Indra and Octavia to make some progress with Arkadia.

Meg: I agree with Allison, I have no idea. I think with the chip, the new Heda will retain some (or all) of Lexa's ideas and Skaikru will be safe from the Grounders. Skaikru's problem is Pike and the fight is going to be between them in Arkadia.

Paul: I have no idea, but I'm very excited to see where the show goes from here. I would love if Clarke was the next Commander. Can you imagine the look on Titus' face.

Caralynn: I'm about 99% positive the next Commander will be Ontari. In fact, I'd be downright shocked if it was anyone other than Ontari. Naturally, Ontari won't be a fan of Clarke (or the Sky People) because of her affiliation with the recently deceased Queen Nia. Chaos will ensue, very very soon. Well, more chaos, anyway. Octavia and Indra better not be caught in the crossfire. I want those two to live! They're easily the most innocent characters out of the entire cast.

Name the single most intriguing development or piece of dialogue that occurred during "Thirteen.”

Allison: I really loved when Murphy realized Polaris was in the room and put everything together. I still don't know how Murphy knew about Polaris, but that aside, it was fun to watch Murphy explain everything to Titus. A light bulb went off in his head, and now Murphy's in a unique situation where he knows more about what's going on than anyone else.

Meg: Lexa and the AI chip in her neck. There was also a moment where she was meditating, like we have seen Jaha doing when he is in the City of Light. I think there is a way to communicate with the dead in this chip/City of Light.

Paul: I loved everything on Polaris. It was great to see just how the end of the world actually happened.

Caralynn: That pillow talk between Clarke and Lexa, when Clarke asked about the eighth Nighblood who wasn't represented on Lexa's back tattoo! Lexa quickly changed the subject and now has no opportunity to clue Clarke in, so this is obviously going to be significant later.

Watch The 100 Season 3 Episode 7 Online

Do you understand why Becca's did what she did aboard Polaris? Or do you think she was just crazy?

Allison: Sort of? I understand she felt responsible for the lives ALIE destroyed, but it's hard to follow or support her when it's unclear how ALIE 2 will save humanity. If we knew more about how the program would help, then it would be easier to decide whether Becca was acting in humanity's best interest or if she was acting rashly.

Meg: I think Becca really did save humanity. I think the black goo she was injecting and the infinity symbol chips she brought down with her saved people from the radiation. She wanted to fix what her mistake had caused. In her mind, the people on the space station were just a small sacrifice in her attempt to right her wrong.

Paul: I am clueless on this one. I would like to think she did it to save what was left of the human race, but you can never really tell with this show.

Caralynn: Becca's mentality made perfect sense to me, and I love Meg's idea! That hadn't occurred to me at all, that the black goo (precursor to the Nightbloods' black blood) somehow protected everyone from radiation, but that completely makes sense. Now I'm just wondering why only a select few have black blood and everyone else apparently bleeds normally?

Are you satisfied with the "origin story" of the Commandership as laid out in "Thirteen"?

Allison: I did like that we learned a lot about the history of the Commander. I'm still now sure how Becca is the first Commander. It would have been nice to see more of her first days back on the Ground, and how she came to be in a position of power. Somewhere along the line, Becca's project turned into something sacred. There's still so much we don't know.

Meg: I am! I love that the Grounders are so connected to the Sky people and they don't even know it. I would love to see more flashbacks of Becca and how she saved the people on the ground. I also want to know more about the how the Nightbloods tie into this.

Paul: I loved it. I couldn't imagine it playing out any better than it did.

Caralynn: One hundred percent, yes. I wasn't even expecting this season to delve into the origin of the Commander post, but the set-up and execution of this was so subtle and perfect. I very much enjoyed the way it played out, particularly the way the flashback sequences intertwined with Lexa's death and Titus removing the AI from her body.