تدخل كلارك بعد محادثة بيلامي وأوكتافيا ، حيث تخبرها بيلامي أن الراديو قد مات ، وبالتالي لن تتمكن من توديع والدتها. تصبح كلارك عاطفية عندما تعانق بيلامي وتبكي على كتفه. تريحها بيلامي لفترة من الوقت قبل أن تتم مقاطعتها كما يدعوها مورفي.

بالعودة إلى Second Dawn Bunker ، تدخل إندرا مقر أوكتافيا. إنها تشجع أوكتافيا وتقول إنها بحاجة للقيادة. تقول أوكتافيا إنها ليست قائدة. ومع ذلك ، يقول إندرا إن زمن القادة والشعلة قد ولى - لقد حان وقت أوكتافيا الآن ويعرض المساعدة. ثم تفتح إندرا يدها وتظهر لأوكتافيا نفس شعار الجبهة الذي ارتدته ليكسا . هذا يمثل رسميًا أوكتافيا كقائد لهم.

تقف أوكتافيا أمام الجميع ، الشعار على جبهتها ، وهي تخاطب كل شخص داخل Second Dawn Bunker. تبلغ الناس بوصول برايمفايا . وتختتم حديثها بعبارة "من الرماد نرتفع".

بالعودة إلى معمل بيكا ، شاهد بيلامي وكلارك ورافين ومونتي وهاربر ومورفي وإيموري وإيكو الإشعاع يدمر بوليس من خلال آخر تغذية بطائرة بدون طيار . ثم تبدأ Raven الحسابات في رأسها وتدرك أنها ستحتاج إلى إرساء السفينة يدويًا في خليج حظيرة الطائرات. كما تخبر الجميع أنهم بحاجة إلى الابتعاد عن الأرض لمدة 20 دقيقة على الأقل قبل أن تضرب موجة الموت. على الرغم من أن الوضع يبدو قاتماً ، إلا أن بيلامي تبدي بعض التفاؤل. بعد لحظات ، يضغط Raven على زر ويتم ضبط المؤقت لمدة 90 دقيقة - الوقت المتبقي حتى تصل موجة الموت إليهم.

يناقش مورفي ومونتي وفاة جاسبر أثناء بحثهما عن جهاز الأكسجين. يُدلي `` مورفي '' بملاحظة دنيئة حول قيام `` جاسبر '' بإتاحة طريق جبان للخروج ، ويمسكه `` مونتي '' الغاضب. يخبره مورفي أن يتوخى الحذر بشأن تمزيق بدلته. ثم يخبر مونتي مورفي أن الشيء الوحيد الذي يهتم به هو البقاء على قيد الحياة. ومع ذلك ، ينتهي شجارهم عندما يجدون لوحة كبيرة في مخبأ بيكا مع جهاز التنظيف. من أجل إخراجها في قطعة واحدة ، قرر مونتي خلع قفازاته لإخراجها. في اللحظة التي تتعرض فيها يديه للإشعاع ، سرعان ما تبدأ يديه في الاحتراق وهو يصرخ من الألم.

Meanwhile, at Becca's lab, Clarke discusses their food rations for their space plan with Echo. A few minutes later, Clarke and Bellamy have a conversation. Clarke tells Bellamy about her concerns regarding her mother's visions. Bellamy's doesn't believe the visions will come true and tries to reassure Clarke, but Clarke begs him to listen. She tells Bellamy that regardless of the stupid things that he's done, it's admirable that it was always to protect Octavia. Clarke says that he'll need to use his brain more than his heart in order to survive the next five years on the Ark. Bellamy then tells Clarke that what he has her for. From a distance, the rocket is damaged, as Raven yells. Alarmed, Bellamy and Clarke run towards the rocket, as smoke comes out of an area in the spaceship. Raven says there's not enough time and she's pushing too hard. She then commands the computer to assess the damage. They are informed that the communication system is down. Bellamy asks Raven to talk to them and she says that they're not going anywhere. She then tells the spaceship to abort the mission.

Moments later, Bellamy asks her to explain and she says that there's not enough power. Clarke then asks her to think because they've seen Raven solve harder things. Raven then breaks down and says that she's not smart enough by herself. Bellamy then tries to console her and say that she can do it. Raven then remembers A.L.I.E.'s ability to transmit herself to the Ark. She then tells everyone to get back in the cockpit and asks the computer to resume the launch sequence.

Meanwhile, Monty and Murphy are carrying the oxygenator. Monty's hands are badly burnt by the radiation and Murphy helps him get his gloves on. They start to carry the machine and Murphy tries to distract him from the pain by asking him about Harper. Suddenly, Monty passes out and Murphy says that he's sorry. He then proceeds to drag the oxygenator back to Becca's lab by himself leaving Monty behind.

Outside Becca's lab, Raven instructs Bellamy and Clarke while pointing toward a tower. She gives a circuit to Clarke and gives instructions on how to transmit the signal to turn the power on in the Ark. Murphy appears with the oxygenator, struggling to carry it, as a concerned Bellamy approaches him. Bellamy is forced to go and get an unconscious Monty, leaving Clarke to plug in the circuit board herself. Raven then hands a bag to Clarke and says that she has 10 minutes to get from the tower to the lab once she completes her mission. Inside Becca's lab, Raven searches for Echo. Echo hides in a corner as she puts white paint on her face.

Back outside, Monty wakes up and realizes that there are only 14 minutes left to return to the lab. Murphy and Bellamy then arrive to save him. Murphy tells him that he got the oxygenator over to the lab. This leads to Monty embracing Murphy, telling him that he may not hate him anymore.

The action switches back to Clarke as she sees the tower and runs towards it. She opens the bag and takes the circuit board. Clarke sees the sensor that she needs to connect it to and hooks up everything. However, she's unable to get it working from the ground. She attempts to radio Raven but communications are down. Clarke then finds manual instructions and says, "My fight is over" as she begins to climb the tower towards the satellite.

Back at Becca's lab, Bellamy and Murphy are carrying Monty in. Harper hugs him and Bellamy wants to know where Clarke is. He also wants to know where Echo is. Just as he asks for Echo, she cuts her hand and put her bloody hand-print on her stomach. She then attempts to stab herself in the stomach. However, Bellamy runs in and stops her. He tells her that she's strong and needs to go with them to the Ark. Raven comes in tells them that there are two minutes until launch. Raven hands her a suit and tells her to put it on. When Bellamy asks about Clarke, Raven says they'll wait as long as they can.

Back at the satellite tower, Clarke nearly falls off the tower as she ascends it. She looks at the radiation wave rapidly approaching on the horizon. It's imperative that she hurry and find a way to transmit the power signal.

The action switches back to Raven telling Bellamy that it's now or never to launch. Bellamy reluctantly walks into the cockpit. Emori asks that they give Clarke another minute. However, they all decide that Clarke would want them to leave. They initiate countdown and they take off without Clarke. Clarke then watches as the rocket takes off and continues to climb the tower.

We see everyone bracing to release the ship from the rocket thrusters and the computer confirms that the separation is complete. Raven says that everyone should be getting a view of the Ring soon. However, when they see it, they realize that the power isn't on. Bellamy asks if Raven's ready for her space walk and she proceeds to do it. She needs to make sure that she's in a position to get the Ark's door open once Clarke gets the power on.

Back at the satellite tower, Clarke gets to the control panel at the top. Unfortunately, she gets the same result as she did on the ground. The computer recommends a manual override and the situation is getting extremely desperate for Clarke.

In space, Raven floats over to a door and sees that her oxygen is down to 18 percent. She attaches a power conduit to the door and awaits Clarke to get the power on. At this moment, we see Clarke physically attempting to get the satellite dish to turn to get it back online. She eventually succeeds and then the control panel says that it's searching for a signal. Suddenly, it shuts off as Praimfaya is virtually breathing down Clarke's neck. She proceeds to descend the tower and begins running for the lab. However, she falls and cracks her helmet. She gets inside Becca's lab and takes off her helmet, but her face is burned from the radiation. This scene ends with her falling and passing out.

Then, Murphy, Emori, Harper, Monty, Raven, Bellamy, and Echo get onto the Ark, but Raven is low on oxygen. Murphy and Emori decide to share theirs along with everyone else. Meanwhile, Monty instructs Bellamy to connect the oxygen scrubber to the conduits on the Ark. Suddenly, Monty passes out, then so do Emori and Murphy. Bellamy hits a switch and everyone passes out. A second later, the oxygen vents turn on and everyone begins to revive.

Bellamy looks down at a destructing Earth which resembles a fireball more than an inhabitable planet. Raven walks up behind him and says that Clarke saved them again. Bellamy says that he won't let her die in vain and Raven agrees. They continue watching in silence.

Clarke indeed did survive Praimfaya. There she sits ontop of the rover, breathing in the fresh air as it rains. She gets off the rover as she walks toward the cliff, sitting on a broken tree bark. She gatheres the radio and satellite dish as she sits down, as she looks across the land. She radio calls Bellamy and says that despite not knowing if he's alive, radioing him keeps her sane. Clarke then continues by saying that it's been safe to come down for a year. She says that the Second Dawn bunker has gone silent as well. She has tried reaching the bunker several times, but there's also too much rubble to really know if anyone is alive.

Clarke continues to leave her message until she notices a pod coming down from the sky. She believes it's her friends and excitement fills her eyes. Clarke runs over to the rover and tells a Nightblood child named Madi to wake up. Madi questions Clarke about the ship. She wonders why Clarke told her that the ship would be small when it's clearly large. Clarke then tells her to run inside and grab her sniper rifle. As the ship gets closer, Clarke points the rifle towards the ship and looks through the scope. She sees the label marked on the ship that reads "Eligius Corporation" and "Gagarin نقل السجناء ". تبدأ ماضي في التلويح بذراعيها بشكل محموم في الهواء ، لتنبيه الأشخاص الموجودين على متن السفينة بأنهم موجودون هناك. وبسبب الانزعاج من الملصقات التي رأتها على السفينة ، قالت كلارك لماضي أن تذهب وتراجع المدافع - كل ذلك معهم.