They discovered a way to stop Reign, but to get it they have to get a rock from space.

J'onn offered his ship for the two heroes to take as it seems Reign is getting stronger and is able to fight off the kryptonite and they know they need to hurry.

"We're coming up in it now." Peter says as they leave hyperspace when they look and see a city on the rock underneath a bubble.

"What is that?" Kara asks.

"It kinda looks like the city on Treasure Planet." Peter says when their ship gets hit by a bast of light. "We've been caught in a tractor beam, it's pulling us in."

"Is there anything we can do?" Kara wonders.

"There's nothing I can do. I'm gonna camouflage us, hopefully that still works." Peter says when he stops and smiles.

"What?" Kara asks.

Peter just turns to her with a grin on his face. "You have no idea how long I've been wanting to say that sentence." He explains and makes them look like a rock as they get dragged in.

-

Their ship landed and they come out a camouflage mode and exit the ship and are seriously confused about the city.

"There's an entire city here. How did we miss that?" Kara asks.

"I have not the slightest idea." Peter says as Kara feels sluggish.

"And I'm powerless here." Kara informs him.

"We thought that to be a possibility, remember?" Peter reminds her.

"That's the only thing we've been right about." Kara states as Peter activates a holo-map from his suit to find the substance.

"Looks like the rock we're looking for is a mile within this city." Peter tells her.

"Okay. We better get a move on before they find us-" Kara was saying when Peter's senses go off and he pulls Kara out of the way as someone starts firing on them, and they run into the city.

"I think we lost them. Whoever they are." Kara says when people start to stare at them and Peter retracted his entire suit and is back in his normal clothes to blend in.

They go through a marketplace and Kara gets some clothes to blend in and make their way through the city.

"This place seem eerily familiar to you?" Peter wonders.

"It seems familiar to me, yeah." Kara agrees as Peter activates half of his mask to get a map on where to go.

"We're getting close." Peter says as they keep going.

They reach a forest and find a small building with the rick surrounded by a memorial.

Peter goes to the building when Kara stops to read the memorial.

"And on Earth, the soul is lost in destruction. May their flames forever burn in Rao's light. It's a Kryptonian memorial." Kara tells Peter who's seriously confused.

"You're saying this is Krypton?" Peter asks.

"No." Kara says and looks around the city closer. "This is Argo."

"Arg-where?" Peter asks when his senses go off and they're surrounded by robots similar to Kelex.

"Identify yourself." They tell the two and Peter activates his suit and gets ready to fire his repulsers.

"Stand down, caretakers." A familiar male voice commands and the robots move to reveal...Al Ren, Alura Zor-El, and others.

Both of them look at the group in shock to who they're seeing.

"Mom?" Kara asks.

"Kara?" Alura asks back and they're shocked to see one another.

Peter deactivates his weapons and retracted his suit as he moves closer to Al.

"Father?" Peter asks, trying to find out what he's seeing and what to say and he chuckles before pulling Peter into a hug.

"Is it really you, my son?" Al asks Peter.

"Uh...I think so?" Peter guesses, not sure what to say.

"How are you alive?" Kara asks her mother.

"Your father created a shield to protect Argo when Krypton exploded. We would have never sent you away if we had known it'd work." Alura explains to her daughter happy that she survived. "The both of you, is that Holel Ren?"

"Wait, his name is Holel Ren?" Kara wonders, since she assumed it was just Ho-Ren this entire time. Holel sounds a whole lot better. "But yes, it's him." She tells her mother and they turn to the father and son as they break off.

"I thought I would never have the chance to see you again." Al tells Peter.

Peter just stands there, completely befuddled to what to say or think.

"Speechless, first I've ever seen him like this for this long." Kara jokes and Peter snaps out of it.

"I'm sorry, but is this actually happening? Am I...? Are you actually standing here?" Peter asks.

Al smiles and places a hand on Peter's shoulder. "It's really me, son." He assures him and Peter pulls him into another hug and Peter starts to tear up.

A week ago, his entire family was dead. But now, he's holding his blood father in his hands and he looks to see two women who are smiling at the two. One is older and has dark-black red hair and is around his father's age. The second one has dark brown shoulder length hair, and blue eyes and has a giddy smile. He quickly figures the older one is his mother, but the younger?

"Mom?" Peter asks and the elder woman walks up to him as they separate and caresses his cheek.

"My little boy." She says and tears light up as they worship their time together. "I'm so happy that you're okay. I see Earth has done well to you." She gestured to his iron suit.

"Yeah, more or less." Peter says, not wanting to get into his life story right now. "Who's this?" He asks, gesturing to the younger woman.

"I'm Morg'Ann Ren...your sister." She introduces herself and Peter is shocked to hear he has a sister.

"Wait, if you didn't know we were alive, and you weren't searching for us, what brought you here?" Alura asks Kara.

"Earth is in trouble." Kara informs her. "When Krypton exploded, the followers of Yuda Kal sent three pods after us, each with a Worldkiller."

"A Worldkiller?" Mary, Peter's mother, asked.

"We already stopped two of them, but the last one gained their strength. Reign." Peter informs them. "We followed something that we believe can stop her here.

"Harun-El." Alura guesses. "The black rock of Yuda Kal."

"You know what it is?" Peter asks.

-

"After the fallout, ashes and destruction poisoned the air." Alura says as they're brought into the greenhouse. "We had nothing to protect us as we hurtled through space. The young and the old were the first to become sick. They struggled in our new atmosphere, their lungs more vulnerable, more weak. But after the fallout passed, the shield kept our atmosphere more hospitable. It is what your father gave his life for." She informs Kara. "There was no more time. Argo was in constant darkness. We were running out of air. He repurposed his unfinished research to create a livable environment. He believed that the Harun-El could act as a shield for the city, and he was right. His legacy keeps our air breathable, and shields us from invaders. It keeps us hidden."

"So that's why our detectors didn't see this from the scans. Why there wasn't any signs of life." Peter puts together.

"And why we can't get in touch with Earth. No signal can get out." Kara adds.

"We mined all the Harun-El left. All of it is here. And every ounce of it means one more moment of life. Because of that, we have none to spare." Mary tells them.

"There has to be a way. We just need a small piece." Kara tells them.

"It is not mine to give. But I will call a meeting with the High Council." Mary promises. "It'll take a few hours to gather the members."

"In the meantime, I was hoping to get to know my daughter." Alura says and Kara is happy to.

-

Morg'Ann brought Peter to their parents home and Peter has a vague memory of this place from that alien parasite from the first year of all of this.

"I just have to say...I can't believe I'm actually meeting you." Morg'Ann tells Peter. "I was told I had a older brother, and I imagined what it would be like to meet you, and this...is more than I could imagine."

Peter looks around the place and back to his sister. "I can't believe I'm here. All my life I've felt different. I thought it was because of my powers, then I learned I was half Kryptonian. All my family on Earth died over the years and I've been feeling this emptiness inside. Now I'm here...a father, mother...and a sister. I just can't wrap my head around it."

"Wait, you have powers?" Morg'Ann asks.

"Yeah, I have super powers. On earth, I'm a superhero. They call me Spider-Man." Peter explains.

Morg'Ann looks down at the symbol on her chest that's the same as Peter's spider symbol. "I was told that on earth, where mother was from and where they sent you, this resembles a small arachnid known as a spider. Is this why they call you that?" She wonders.

"That and more." Peter says when he walks into the opening of the room and leaps onto the ceiling before sticking to it. "What about you? Any birth defects like me?" He wonders.

"Come with me." Morg'Ann asks and leads Peter to a river outside their house and picks up a large rock and it skips across the lake.

"So...you do have powers?" Peter asks his sister.

"A few. Enhanced strength, speed, durability, I can't stick to ceilings like you. And of course, as you're aware, mental attack." Morg'Ann lists to Peter.

Peter nods his head, seeing his spider like powers and then realized what she just said. "Wait, mental attack?"

"Yeah, this mental blockade you have, I was given the same. We both have the same power." Morg'Ann tells him.

"Wait, wait, how exactly does this mental attack work?" Peter asks her.

Morg'Ann looks to her brother confused and realizes that he doesn't know. "Here. I'll show you." She promises and stands in front of Peter before closing her eyes before sending a wave of energy at Peter. The wave shoots Peter flying backwards across the grass. "The more concentrated the thought, the powerful the blast."

Peter starts to get back up and his mind is feeling all fuzzy. "Wow. I have never felt anything like that." He says as he gets back up.

"But there is a danger to the more powerful attacks." Morg'Ann warns him while helping him stand up. "If we focus too hard on a single thought, the explosion would cause anyone around us and us to become brain dead. Wear us out so much we can't recover from it."

"Yeah, that's good to know." Peter replies to that, getting back on his feet. "Don't think too hard when using that."

-

The two siblings wander into the market where Peter was planning to return the clothes they borrowed to blend in.

"My friend and I needed these earlier, to...fit in." Peter explains to the owner.

"You mean you needed a disguise." She corrects him. "The daughter of the House of El, and the son of the House of Ren are back from the dead. You're all anyone's talking about today."

"I'm afraid I can't pay you for these." Peter apologizes.

"Keep them. As a gift. My honor." She asks and Peter notices her son he saw earlier wearing a device to breath.

"Or maybe I can offer a gift in return. Your son has thalonite lung, right?" Peter asks and she looks to her son.

"Val?" She calls him over. "Krypton eradicated the disease when I was still a child, but much was lost. This is Val."

"Hey, Val." Peter greets as he kneels to be at level head with the child. "I'm Peter. Well, that's what I'm called on earth. I guess I'm Holel Ren here. Anyway, I have something that I think can help you." He says, getting back on the subject and his suit opens up and hands him a small disk. "This is something that was made by the smartest human I've ever met. She was so smart, she couldn't keep all her ideas to herself. I could barely ever to get her to stop talking." Val laughs at that comment. "She called this a Healing Disk. Can I see your arm?"

The child looks to his mother for an answer and she allows him.

Peter takes the disk and places it on Val's arm. "This is a vaccine and booster that is designed to detect any hostile cells and deploy antibodies to destroy them. He should only need to wear it for a week." He tells the mother and removes the equipment from his face to show he doesn't need it. "And maybe when you're done with it, you can find anyone else who might need it and pass it along. It doesn't need charging as it is solar and body heat charged."

The mother looks and is happy to see what he's done and Peter is happy to have helped them and Morg'Ann is amazed to what her brother had learned from earth. The two then start to walk off to find where the others are.

-

They wander for a while before running into Kara at the capital building where the council is being assembled.

"Where have you been?" Kara wonders.

"Sightseeing and catching up with my sister." Peter says nodding towards Morg'Ann when Mary and Alura approach and bring the two to the council to get some Harun-El.

"Allow me to introduce Kara Zor-El and Holel Ren." Mary says and the two step onto a circle in the center of the room.

"Esteemed members of the High Council of Argo City. Thank you for seeing us on short notice." Kara greets.

"Alura and Mary are pillars of our community, and long standing members of this council. We would be remiss in refusing their children an audience." One member tells them and Peter's senses warn her something is off about her.

"As you may know, the House of Ren, Zor-El and I came up with a plan to save Kara and Holel during the dark days before Krypton's destruction. We didn't know that Argo would survive, and so we sent them to Earth. A place where I was raised and knew that they would be welcomed." Mary explains to them. "And as I thought, their people took them in, saved their lives. And in exchange, they serve the people of their adopted homes. They're both heroes in their own rights that embodies our greates ideals. But unfortunately, they were not the only Kryptobians to travel to Earth."

"Several Workedkillers follows us." Peter explains.

"You must forgive our skepticism. You've been away a long time." A Council member says. "Here on Argo, Worldkillers are the stuff of children's stories."

"We were hesitant at first to believe it was real, but we've faced it." Kara tells them. "She is real. And she calls herself Reign. We have traveled here from across the stars because we can't defeat them ourselves. And earth is in grave danger. "

"An unfortunate situation if true, but how can Argo be of help?" The Council woman asks.

"Indeed." The other member agrees. "Argo is a recovering city. Still limping wounded from the trauma of destruction. We can't communicate outside our protective dome, let alone send troops or aid beyond its border."

"It isn't troops were asking for." Peter responds.

"Then what is it you seek?" The Council woman asks.

"A gift...of Harun-El." Kara explains to them and knows this is gonna take some convincing.

"You would have us give away our most precious resource, our only lifeline, to an alien species?" He asks the two.

"The people of Earth share our ideals. They're more like us than you realize." Kara says.

"Or perhaps you've become more like them than you realize." He responds.

"With all due respect, councilman, Mary is from there and we haven't judged her for where she's come from." Alura informs him. "And the danger currently facing earth is of Kryptonian making."

"And I need not remind you, Alura, that Krypton is dead. Argo city is all that remains."

"And yet the sins of Krypton live on in this Worldkiller." Mary tells him. "Can you abide this as our legacy?"

"This council does not concern itself with legacy, only survival." He replies.

"And what is the point of survival if there's no soul to save?" Alura wonders.

"I agree with Jul-Us." Councilwoman says. "His position is wise and thoughtful."

"Your point is well made that Krypton is dead." Kara agrees. "But its legacy lives on for good and ill. Our families have sentenced prisoners to Fort Rozz. Prisoners who broke free and took their anger out on Earth, many of whose were still trying to apprehend."

"There are people on earth who work every day to solve the mistakes of Krypton's past. People who are trying to make earth fairer. Or just better. These -ow-leaves dedicate their lives to this work...and some have given their lives for it." Peter says as a few memories of Gwen fly into his mind. "These people took us in when they didn't need to. Alien immigrants from a world they didn't know about. A world who's least threatened their way of life, and their safety, again, and again. And now they deserve it in kind, because their very existence is threatened by this Worldkiller of Kryptonian making."

"My mother tells me Argo city has changed, that it has learned from the mistakes of Krypton's past. So, I beg you. Give us the gift of Harun-El. We don't need much." Kara pleads. "And this But of charity , it will save earth.

"Well said, Kara Zor-El and Holel Ren. But my concern is for those of us you leave behind. I'm afraid we cannot spare the Harun-El." Council man tells them. "Who votes with me?" He asks and a few other members raise their hands.

"And those who believe we should help the people of Earth in their time of need?" Alura asks and the others raise their hands, making it a tie and they look to the councilwoman.

"And how do you vote, Selena?" Mary wonders.

"If this Reign is as strong as you say she is, are you sure this plan will work?" Selena asks the two.

"We are." Kara promises.

"We will give you what you seek." She agrees and they see they now will have what they need to stop Reign.

-

"Argo was spared the fate of the rest of Krypton. But what value is our cilivisation if we don't use our stolen time to right the sins of the past? We just set a example for future generations. Or else our survival means nothing ." Seneca says as she hands them the Harun-El. "May Rao's light shine upon you."

"Thank you." Kara says as she takes the rock and says goodbye to her mother for now and Peter goes to his family.

"Well, now I know you're here, I'll need to find some free time to come here every now and then." Peter tells his family and Mary pulls him into a hug.

"Go protect your home, and wear that symbol with pride." Mary tells him and then his father hugs him and looks forward to when he returns and they look to Morg'Ann.

"Did I miss something?" Peter wonders seeing their faces.

"Morg'Ann wishes to know if she could accompany you to earth." Al explains to Peter.

"She...wants to come to earth?" Peter clarifies.

"She wants to see the world you're willing to die protecting and doesn't want to say goodbye just yet." Mary says and Morg'Ann looks to him and wonders what he's gonna say.

"If we do this, you're gonna have to follow my lead." Peter warns Morg'Ann who squeals happy to do that and says goodbye to her parents and leaves with him and Kara.

-

Once they made it back on earth, it seems they made it in time as Reign just broke out of the containment.

"Lena, we're here." Kara says.

"Did you get the rock?" Lena asks them and Peter is holding it.

"Just in time." Reign says and goes to fight the two heroes and new girl.

Peter and Kara take a hit but Peter was able to get the rock to Lena to synthesize a cure from it and then goes in to join the fight.

Peter grabs Reign and throws her across the labs, but she's grown stronger and was able to take the hit and Kara goes to take her down but ends up getting punched across the labs and Morg'Ann interrupts with a mental attack that causes Reign to go off balance.

Lena finishes the cure and passes it to Peter who injected it into Reign.

They watch as something begins to happen as if Reign and Sam are being separated as they watch reign float and turn into sparks, leaving Sam covered only in Kara's cape.

"Sam, can you hear me?" Lena asks.

"Lena...do you have some aspirin?" Sam asks and they all chuckle seeing she's going to be okay.

"Is this an everyday thing for you?" Morg'Ann wonders.

"More or less." Peter tells her.

"I'm sorry, whos this?" Lena wonders looking to Morg'Ann.

"Lena, this is my sister. Morg'Ann. Morg'Ann, this is a friend of ours, Lena." Peter introduces them.

"I didn't know you had a sister." Lena says.

"Neither did I." Peter tells her.