خرجت أوكتافيا إلى فناء بعد أن استدعتها جايا . من الرسمي أن أوكتافيا ستقاتل من أجل سكيكرو . ثم يستدعي جايا إليان لأنه سيقاتل من أجل عشيرته أيضًا. يسأله أوكتافيا عما إذا كان يحاول إثبات أي شيء ، لكن إليان يرد عليها بالقول إنه موجود من أجل عشيرته وليس لها. بعد أن يشرح Gaia قواعد الكونكلاف وما سيحدث في نهايته ،  Luna فجأة تشق طريقها بين الحشد ، ووصفت نفسها بأنها الأخيرة من عشيرتها. تسخر منها جايا باعتبارها الجبانة التي هربت من مقعرها ، لكن لونا تعلن صراحة أنها لن تهرب من هذا. ثم قبلت سيجيلها كمحارب عشيرتها. ومع ذلك ، نظرًا لأنها الأخيرة من عشيرتها ، تتساءل غايا عن من تقاتل من أجله. تعلن لونا أنها تقاتل من أجل الموت ، لصدمة كل الحاضرين ؛ إذا فازت ، فلن تسمح لأحد بدخول القبو ، مما يؤدي إلى انقراض الجنس البشري.

مرة أخرى داخل غرفة الإعداد للمعركة في بوليس ، نرى إندرا يقترب من أوكتافيا. بدأت في الحديث عن أوكتافيا وتقول إنه لا بأس من أن تخاف. ثم تسحب إندرا سيفها وتقدمه إلى أوكتافيا كهدية. تريد أوكتافيا أن تعرف سبب قيامها بذلك لأنه قد يعني نهاية شعبها. ومع ذلك ، تؤكد إندرا أوكتافيا أنها واحدة من شعبها. تختتم حديثها الحماسي بإخبار أوكتافيا أنها تتحكم في من تقاتل من أجله حقًا. يحتضنون.

بعد لحظات في الفناء ، تحدث كلارك مع بيلامي وكين . تعرب كلارك عن قلقها بشأن دخول لونا لأنها متخصصة في هذا النوع من القتال. ثم يعرب جاها عن قلقه بشأن ما قد يحدث حتى لو فازت أوكتافيا بالمؤتمر النهائي . يؤكد كين لجها أنه سيكون لديهم أوكتافيا جاهزة. يقترح جها أن يجهزوا المخبأ على أي حال ، مما يعني أن  سكيكرو  يجب أن يركز على بقائهم وأن أصحاب الأرض لن  يحترموا موقع سكيكرو في القبو إذا فازت أوكتافيا بطريقة ما. لا يوافق كين على ذلك ، قائلاً إنه إذا حاولوا الغش ، فسوف يفقدون المخبأ بالتأكيد ؛ المقعد مقدس ، وسوف يكرمون ذلك. "شئنا أم أبينا ، نحن كل  جراوندرس الآن ".

كلارك يقترب من روان ويخبره أنهم لا يستطيعون ترك لونا يفوز. تسأل عما إذا كان بإمكانه ضربها ويضربها الصدى بقولها ، "بالطبع يمكنه ذلك". ثم أخبر روان كلارك أنه انتهى من التحالفات. كما أخبرها أن تنزل من ساحة المعركة قبل أن تهين شعبها مرة أخرى. يعتقد روان أنه سيفوز ، لكنه يدعي أنه إذا كان مقدراً له أن يموت في ساحة المعركة ، فإنه لا يهتم بمن يدخل المخبأ. يرد كلارك بالقول إن هذا هو الفرق بينه وبينها ؛ إنه يقاتل من أجل "الشرف" بينما تقاتل من أجل بقاء الجنس البشري ، حتى لو لم يشمل ذلك شعبها. عندما تغادر كلارك ، أعطاها إيكو مظهرًا غريبًا ثم انطلق.

بالعودة إلى غرفة الإعداد للمعركة ، يقترب كين من أوكتافيا بنصائح حول ما يجب فعله ضد كل محارب. ثم تقترب منها بيلامي باستراتيجية لمحاولة الاستلقاء على الأرض ، وهو ما تجيده بالفعل منذ سنواتها في الاختباء على الفلك ، وهذا سيسمح لأقوى المقاتلين بإخراج بعضهم البعض. ثم أدركت أنه من الصحيح أنها لا تضطر لقتل كل محارب ؛ انها تحتاج فقط لقتل آخر واحد.

War drums sound and the various warriors go to their starting points in the maze of Polis, each marked by the battle flag of their clan. As they walk, Fio, the Trikru champion, compliments Octavia's skill, remarking that it is a pity he will have to kill her. Seconds later, we hear battle horns playing, signaling the beginning of the conclave. Several warriors let out primal screams and run into battle.

At first, we see Roan in a battle with a large man wielding a giant hammer. Octavia is running around trying to observe the action without being seen. However, Fio spots her her and gives chase. Octavia knocks down various pieces of debris to slow him down as she runs, finally ducking behind a piece of metal sheeting near Roan's battle; Fio unknowingly climbs right over her, then stops to observe Roan. Moments later, we see Roan cut down the large man and kill him with his own hammer. Fio then attacks Roan with a pair of long knives. However, Roan gains the upper hand quickly, stabbing him with his sword. He then picks up the token of the fallen warrior and yells, "Trikru has fallen!"  Gaia sees this and immediately becomes sad. She announces the death of the two soldiers and then runs over to Indra to hug her. It appears that Trikru's place inside the Second Dawn Bunker is no longer an option.

Octavia enters the armory; as she warms her hands on a brazier, Luna enters and approaches her. Octavia says that Lincoln would be ashamed of Luna, but Luna claims Lincoln was a fool for believing that all of humanity could act as one people; she points out that, at the end of the world, humanity chooses to fight to the death instead of working together.  Octavia reminds Luna that she used to believe people were worth saving, but Luna says she was wrong. The cruelty she suffered at Skaikru's hands in the name of survival made her conclud, that humanity is inherently cruel, violent and selfish. Octavia claimed Lincoln wasn't, and that she loved him for his faith in humanity, but Luna claims that, by choosing to fight in the conclave for a specific group, Octavia is disrespecting that same faith and proving she is no different from the worst of humanity.

Luna mockingly repeats Octavia's words back at her, "Lincoln would be ashamed of you", and attacks. It is immediately clear that Luna is the better fighter; she forces Octavia back and lands several blows, finally knocking her down. Before she can make a killing blow, Octavia throws a fistfull of grit and sand into her eyes. As Luna clears her vision, Octavia slashes a rope holding a set of metal pipes that drops on Luna, knocking her down. As Octavia flees, Luna wipes Nightblood from her forehead and screams that she can't hide forever.

A few seconds later, we see Octavia run into a room to tend to a wound. Ilian then breaks inside of the room and tells her that he's not there to kill her. He says that she's not his enemy. However, she claims that she will kill him the next time that she sees him. It's clear that tension is at an all-time high during this conclave to end all conclaves.

Back at the tower in Polis, we see Bellamy checking out the action. He notices that one of the fighters dies from an arrow from a masked figure. Noticing that Echo has disappeared, he realizes that she is cheating and he goes to do something about it. Kane tries to stop him, saying if he's seen on the battlefield Octavia will be executed and Skaikru loses the bunker, but Bellamy insists that Ice Nation has two fighters in the conclave. It's not fair and he intends to stop it. However, Kane tells him to wait until it's dark so no one catches him.

Back on the battlefield, Octavia has several fighters approach her. However, Ilian jumps into the fray and helps her defeat them. Octavia tells him to stay away, but Ilian refuses to listen. Suddenly, an arrow pierces Ilian through his neck — one fired by Echo. Octavia drags him away from the line of fire and mercifully ends his life. It appears that Ilian's fight is finally over.

Once it becomes nightfall, we see Bellamy sneaking around Polis while trying to find Echo. He then gets a good view of her and proceeds to get closer. However, he notices one of the conclave fighters coming around a corner and hides. Moments later, he watches Luna kill the warrior in less than five seconds. As Luna leaves, Octavia is seen following her discreetly; Echo sees her and aims an arrow at her, but Bellamy's appearance startles her and causes her to misfire.  Bellamy knocks her down, rips off her mask and begins choking her as Octavia runs up the stairs to investigate the commotion. Roan suddenly appears and kicks Bellamy off of Echo, saying he heard both of them on the street. Bellamy says he was trying to stop Echo and Roan demands that she explain herself as Octavia watches them, unseen. Echo says that she's doing what's best for their people, but Roan refuses to taint his honor for the sake of victory, as his mother would have done. He angrily banishes her from the Ice Nation, ordering her to leave the battlefield without being seen or she will doom Azgheda anyway. Turning to Bellamy, he warns him he could have Octavia executed now by simply calling for a scout, "but what fun would that be?" He allows Bellamy to leave without anyone seeing him. As he goes, Bellamy warns Roan not to underestimate his sister.

Seconds later, we see Gaia announce that only four warriors remain within the conclave. Kane then approaches Indra and apologizes about Trikru. She then comments about how Octavia is doing well and Kane thanks her for that.

Roan is attacked by Octavia, but dodges her attack. As they circle each other, he accuses her of betrayal, but she points out that, due to her prior loyalty to Indra, he didn't leave her much of a choice. Acknowledging her point, Roan sheathes his sword and offers a temporary truce; one of them needs to win to ensure humanity survives, but he doesn't believe either of them can defeat Luna one-on-one. Octavia asks what happens once Luna is dead, to which Roan smiles grimly and replies "May the best warrior win."; until then, they are one clan. After a moment, Octavia grips his arm and nods. As Bellamy sneaks off the battlefiend, he is chloroformed and dragged away by a masked figure.

Roan and Octavia hear the sounds of battle and circle towards it from two directions. Roan arrives just in time to see Luna throw her pike and impale her opponent through the back; when he approaches, she simply picks up her opponent's twin swords. He takes the token from the body and taunts Luna to take it from him as Octavia approaches her from the side. Roan and Octavia attack together, but Luna's skill enables her to fight them simultaneously; she inflicts minor wounds on both of them. Roan finally manages to knock her down with a punch while she is driving Octavia back, but as he raises his sword for the kill, a clap of thunder sounds. Black rain starts to fall; Octavia runs for cover as it burns her skin, yelling at Roan to do the same.

Luna, immune to the irradiated rain due to her Nightblood, gets up and attacks the disoriented Roan, slashing him across the stomach.  Disarming him, she declares that his fight is over. Roan makes a last desperate attack, pinning Luna's arms and forcing her own sword against her throat, but before he can kill her, Luna headbutts him, twists free and slashes him again. Dropping her sword, she grabs Roan by the hair and shoves him headfirst into a nearby fountain, drowning him as Octavia watches in shock. She flees as Luna takes the tokens from Roan's neck and pursues her, mockingly declaring that "the King is dead."

Luna stalks Octavia into an abandoned building, entering a room with various hiding places; she kicks open a door, peering under various shelves and tables until she spots a thin trail of blood leading to a wardrobe. She admits that at one time, what Octavia said about her was true; that if you showed people an alternative to the endless killing, the darkness in them would fade, just as hers did when she stopped blaming herself for killing her brother. However, Luna admits that, on the day of her conclave, in the moment when she knew only one of them could survive, she still wanted it to be her; what scared her into leaving the conclave wasn't grief, but horror that her own dark survival urges were no different from anyone elses'; that darkness can surface again in anyone, no matter how deeply they bury it. As she finishes speaking, Luna stops in front of the wardrobe and stabs it twice, declaring that she is the darkness, and this is the end. She then throws the doors open, but the wardrobe is empty. Octavia suddenly stabs her through the stomach from behind. As Luna dies, Octavia tells her that she was wrong: there are people worth saving, just not her.

Closing Luna's eyes, Octavia tells her her fight is over and takes the rest of the tokens; she is the champion of the conclave. Gaia announces her as the winner and that the Second Dawn Bunker belongs to Skaikru. However, Octavia says that she's not only fighting for Skaikru, but for everyone. As a result, she announces that everyone will share the Second Dawn Bunker together. This leads to everyone chanting the word "Together!" However, Octavia is wondering where her brother is since Bellamy isn't around for her victory speech.

بعد لحظات ، نرى بيلامي يستيقظ داخل القبو. يتضح بعد ذلك أن جحا وكلارك مسؤولان عن اختطافه. إلى جانب الاختطاف ، ينتهي بهم الأمر بإغلاق مدخل القبو. هذا يقود إندرا إلى القول ، " لقد خاننا Skaikru جميعًا" كما تنتهي الحلقة.