Unsurprisingly, the various factions have different ideas about how to achieve peace. It seems however that only Charmaine has any idea of what to do with that peace if and when it actually happens. For the last few episodes we've seen the planning stages of what is to be an epic show down between Octavia and Charmaine and for me at least, it's starting to drag.
Madi had been made Octavia's second and Clarke is all too aware of the threat that this represents. After hours of telling Madi about Octavia's adventures and the people hidden in the bunker, Madi views Octavia as a hero and doesn't realise that the power which Octavia welds could be a danger to her. Clarke makes a deal with Charmaine to surrender unequivocally and in exchange, they agree to share the Valley. Bellamy however has one proviso, he won't kill his sister. It's hardly a surprise that killing Octavia would be the line in the sand for Bellamy, despite how terrible Octavia's rule has been. Indra is drawn into Clarke's plan and together with Bellamy, they decide to kill Cooper using the worms believing that if Octavia's biological weapon is rendered useless that she will have no choice but to abandon her invasion plans.
The only one to have any kind of reservation about the plan is Monty, who has been hard at work creating algae in the hopes of offering an alternative to raiding the Valley. At this point, Monty has seen enough blood and death to last him a lifetime and it's become increasingly clear that he is a haunted man. All Monty needs is some time to perfect the algae because for some reason, the first batch he tried back in space put Murphy into a coma for a month. Cooper is the first to burst Monty's bubble when she reveals that what he is doing is worthless because the invasion of the Valley is going to happen soon. The second time it happens is when Monty is forced to become complicit in Cooper's murder, despite all of his pleas about how there always seems to be another justifiable murder that needs to be committed.
At the Valley, a bloody Shaw is brought into the same room as Raven and Echo. Echo sees betraying and murdering Shaw as an opportunity because he is the only pilot that Charmaine has. Shaw's death would mean that Raven would be in a position of power and in the process it would also eliminate some of Charmaine's tactical advantage because without the ship, it would even the playing field. Raven however is nowhere near as ruthless and Echo and so she's not on board with killing Shaw. Raven and Echo don't get to talk about it for long because she's called to assist Abby.
At first, Raven is absolutely overjoyed to see Abby. It's a great reminder that these two do have a history and a bond. Abby wants help making some medical equipment to cure Charmaine's people but when Raven learns that they are dying, her position is that it would be better for everyone if Abby did nothing. Abby tries playing righteous at first, claiming that she made an oath and that as a doctor she has an obligation to heal them. When that doesn't work, Abby says that Charmaine threatened her and that's enough to get Raven moving.
When Raven finishes the work that Abby needs, she discovers Abby unconscious. The betrayal comes when Raven learns that Abby's real motivation is to feed her drug addiction and that it was the drugs that rendered Abby unconscious. Raven is quick to realise that Charmaine has been feeding Abby drugs and she's mad as hell - mad enough to threaten to destroy the equipment she just finished building. Abby then does the unspeakable and uses the shock collar to stop Raven, while crying and apologising the whole time.
It cost Abby dearly but she is successful in curing one patient and given that it's Vinson, whose been given a new lease on life and his seeming fascination with both Abby and Raven, I'm pretty sure that we can expect something creepy. Charmaine is of course happy with Abby's results but always the strategist, decides to keep the news of the cure to herself and threatens Abby to keep her quiet.
It's only when Raven is back to her regular holding room in a heart to heart with Shaw, we learn that how personal this whole experience is to Raven. It turns out that Raven's mother was an alcoholic and that the disease ultimately killed her.
Now that they have a prisoner, Emori and Murphy try to use their leverage. It turns out however that Charmaine isn't interested in getting McCreary back because his faction represents a threat to her hold on power. Rather than agreeing to trade Raven for McCreary, Charmaine tells Emori and Murphy that they are welcome to kill him. This of course shocks Kane, who once again goes into mentor mode and wonders what kind of leadership they are getting from Charmaine. He knows that Octavia is bad but given everything Charmaine has done so far, she may not be much better. For some unknown reason, Charmaine reveals her pregnancy and begins to talk about building the Valley into a home, openly wondering about building a school for her daughter.