Oh my how the roles have all reversed. If you recall, when Skaikru first landed on earth, to the grounders they were an invading force and so the grounders attacked. The little patch of earth that Clarke has appropriated from the slaughtered clan seems to be all that is habitable on earth now and she is determined to protect it at all cost and teach her adopted daughter how colonisers are to be treated. Clarke isn't about to ask any questions from the invaders and she continues on with attack mode, setting up one of the prisoners as bait so that she can take a shot at the rest of his comrades. Because they are only two of them and they don't have the fire power to take on the invading prisoners, they are forced to split up. Clarke warns Madi to run and hide while she leads the prisoners of the Eligius away from her.
Up in space, the rest of the crew are getting the fuel needed from the Eligius to be able to return back to earth. It's not long before Monty discovers the cryochamber and the almost three hundred people still in stasis. In another area of the ship, Bellamy learns that the people sleeping and those on the ground are all murderers. Things become urgent when they learn through radio communications that someone on the ground has been captured. Because Bellamy assumes that Clarke is dead, he believes that the person in danger could be Octavia. Messing with the system of Eligius doesn't go unnoticed and Charmaine gives the the order to awaken one of the prisoners to deal with the invaders. It takes several members of the crew to take the prisoner out.
On earth, it's time for interrogation for Clarke. Clarke takes a page out of Lincoln's captivity and not only remains silent, she actively tries to convey the idea that she doesn't speak English. Charmaine however is one step ahead of Clarke and has noticed from Clarke's body language that she understands the radio transmissions between her and her crew. Charmaine explains that they didn't know that the little oasis was occupied when they arrived and were only looking for a safe space to live. It sounds quite reasonable but given that everything that Clarke has been through, she's not about to put her trust in Charmaine.
Now that the prisoners in cryogenic sleep have been found, the crew must decide what to do with them. Murphy is quick to suggest that they should kill everyone now because they are sleeping army who will do nothing but cause damage or kill Skaikru when they awaken. Monty of course is not down with this idea at all. It's Bellamy who decides that a compromise is more in order. Bellamy asks Raven to cut off communications with the ground and set it up so that they can rig the stasis machines to go down permanently remotely if necessary - why waste good leverage. Bellamy does however check in with Murphy for his opinion on the plan and while Murphy doesn't exactly co-sign it, he clearly doesn't have a loud objection.
Back on the ground, the prisoners are about to catch up with Madi. A panicked Clarke will not risk her adopted daughter being captured and so she speaks for the first time, begging Charmaine to let Maddie live because Maddie is only a child. It's only when Clarke volunteers that Maddie is leading their forces into a trap that Charmaine finally calls her men back. Charmaine promises Clarke that if she deals honestly her, that she will be honest in return. Charmaine's first question is how the earth got destroyed, causing Clarke to question what time Charmaine is talking about.
Back aboard the ship, the residents of the Arc prepare to depart for what they hope to be the last time. There's one problem though, there's no way to remotely detonate the cryogenic chambers, meaning that someone is going to have to stay on board. Bellamy offers to be the one to stay, not wanting to be responsible for leaving someone he cares about behind again. Unfortunately, because the process of killing the chamber is so complicated, Raven explains that it would take several days to teach Bellamy and how to do it. Raven explains that there are two escape pods on the Eligus and that if necessary she will use one of those to return to earth. Raven also points out that if they can get on good relations with the prisoners, she can hitch a ride back to earth with them, seeing as how they have a ship. Bellamy is reluctant but at this point feels as though he is out of options.
