This episode is called "Four Horsemen" and that seems appropriate since the tone here is very apocalyptic. We knew going into this season that we were going to be dealing with the radiation, and the very likely event of total annihilation, unless an answer can be found. And so far the answers are not there. There's two major storylines going on here and a third that's almost as important, and I'd have to say if there's a theme it would be- faith. Faith that you're doing the right thing, when it's impossible to even know what that is.
First of all Jaha thinks he's found a fallout shelter that could potentially house thousamds- and if true that the answer to their survival problem. So he, Bellamy and Clarke set out to find it. And they do, but it's not what they were hoping for. After a nice nighttime scene with a little tension, they are shocked to find that the doomsday cult that built the shelter didn't make it. The shelter is there, and so are a lot of dead people. I can't help but wonder though if the shelter of the Second Dawn- that's the name of the group- won't reappear, sine they spent a bit of time introducing it.The other thing this storyline gave us was one of the better exchanges of the night, when Jaha told Bellamy that "She's lucky to have you." Meaning Clarke, and that Bellamy "centers" her. Bell replies "You got it backwards." Nice.
The second thing going on is we find that the radiation is already affecting people. Luna's group of Grounders show up and they're sick, including her daughter. Abby treats them but has a disagreement with Raven about whether to use the limited doses of radiation pills they have- Raven feels they need to conserve them, even if it means letting the Grounders die. Ouch. Murphy breaks the standoff by stealing the pills and giving them to Abby. Unfortunately they don't work, and Luna's daughter dies. This was heartbreaking and a powerful moment. Abby and Raven sold that. The kicker though is at the end when Luna somehow recovers- and they realize that Nightblood is the difference. Luna has it- and she'll survive.
Which leads us to the Flame. If Nightblood is important then the Flame would seem to be even more so- I can't pretend to keep all the Nightblood stuff straight but doesn't the Flame have something to do with that? Anyway the problem is the Flame goes missing, and Roan tells Octavia that a Flamekeeper made off with it. Octavia says she'll solve the problem, and she does- sort of. She tracks the Flamekeeper to the temple, only to find that the Flamekeeper is... Indra's daughter Gaia. What the... this is getting more complicated. And then Ilian's crew of looters show up (did I miss something here- why is he a looter now?) and they destroy the chip! Well not really, as Octavia does a quick switcherooie and saves it. But... she lets Gaia keep it and lies to Roan. *Sigh* Why didn't she just take it and give it to him? Screw Gaia! Indra might have backed her since she didn't like Gaia taking it anyway.
But that's the 100. The Flame after all has to be in flux, especially now that Nightblood is relevant. But let's get to the important part. Bellarke. Back at Arkadia Bellamy is sleeping and Clarke is making her list. Her list of 100 people who will survive. She's got two spots left and she writes Bellamy's name down. He wakes up and tells her "If I'm on that list, you're on that list." But she can't do it- so he writes her name down. He puts his hand on her shoulder and she takes the comfort he offers. These two have been through so much, and they carry a lot of guilt. It goes back to Mt. Weather, and before that- they alone I think understand each other and those decisions they have made.