At the DEO, Peter has gotten Hank to agree to show him some of his own fighting techniques. Why Peter never thought of this before is beyond him. They're in the training room and have made sure nobody can enter since Hank is using his Martian powers to give Peter a challenge.

That is until Hank got the upper hand when Peter tried webbing him and slammed him into the ground.

"As effective as your webbing is, next time you're anger about something, let's have coffee." Hank tells Peter.

"Coffee?" Peter asks while retracting his mask and standing up. "I don't drink that stuff, you know that makes me go through the roof in sugar. Literally. It took me a week to fix that hole in the roof."

That reminder causes Hank to laugh in response.

"Besides, I'm not angry. I'm a bit scared about what these aliens have planned." He admits to Hank.

"We'll stop them, Peter. We always do." Hank tells him before getting ready to leave when Gwen comes running in.

"Guys, the internet's gone down. And I don't mean our WiFi. I mean the internet itself has gone down." Gwen informs them and they run out to the computers and see the city has gone into chaos. "All of the traffic lights are green, banking and basically everything connected to the internet is dead." She explains and that isn't going to be a good day.

-

Back with Catco, who apparently started this by not using a flash drive that was mailed to them from and has started a cyber war with the entire world.

"This hacker isn't stopped, we're looking at a worldwide economic collapse." Winn states to Lucy and James when Cat comes walking through.

"Relevant people, in my office." Cat tells them and some of them follow into her office. "National City's entire mainframe has been breached by a cyber-terrorist attack and nobody knows what they're doing it, or who, or when they will strike again."

"I've spoken to my contacts at the Pentagon." Lucy tells her. "Military intelligence is all over it."

"This is about National City. Our home is under attack. And we have no idea how this is going to end." Cat says and looks to James. "Circle the wagons, we are going to pit every investigative team we have on this. Freelancers too. We identify the hacker. We end this." She explains and looks to the new assistant. Get my investment broker on the phone."

She doesn't know who that is and Kara suggests she'll do it herself knowing what she's doing more than the new girl who is just using Cat to jumpstart her own rivalry company.

-

Kara has taken Winn and James to set up shop at her place to locate the hacker.

"Okay, so the hacker. She has created what's called an oscillating variable matrix to cover her footprints. But I have created an inversion pathway, which will hopefully lead me to wherever she's hiding. She could be doing this from the other side of the globe." Winn says when his computer screen goes crazy and the hacker appears on his sceeen.

"No. Just the other side of your screen." She tells him. "You know, you're fairly clever, for an ape."

"And you are freaking me out for an evil blonde computer face." Winn informs her.

"Then let's talk in person." She states.

"Name a time and place." Kara tells her.

"How about now?" She asks when pixels fly off of the computer and form a blue person, surprisingly resembling Mystique from X-Men. But her actual name is Indigo.

"Supergirl. What exactly makes you super?" Indigo asks Kara who looks at the marks on her head.

"That symbol, I've seen it before." Kara tells her.

"It's the sign of my people. The font of omniscient knowledge." Indigo tells her. "I know everything about you."

"What are you, some kind of living internet?" Winn asks, confused.

"You might call me that." Indigo replies to him before using her fist to send Kara flying out of her window and grabbing James and Winn as she comes flying back in.

"Which one of your friends should I skin first?" Indigo asks Kara when her door gets broken down and it reveals Peter, Alex and Hank.

"Hold It right there!" Hank warns her while aiming his gun and Peter starts charging his repulsers as she vanishes into the computers.

"Oh, thank god we gave our own personal black ops unit." Winn states. "Oh, and Spider-Man on our call. My bad." He aploigizes.

"We were tracking the WiFi signal from the computers controlling traffic lights. Gwen found something embedded in the signal. Something nonhuman and lead us straight here." Peter explains to her.

"Can you track where she's going?" Winn asks him.

"The rest is classified. Active DEO agents only." Hank says.

-

They started locate her as across the city, Indigo exited someone's technical device, unaware she's being traced.

"I calculated the odds f you locating me at only 18.3%." Indigo states to the figure. "But logic never mattered much where you and I were concerned, did it, Non?" She asks the Kryptonian who is done mourning and is ready to get back to conquering.

"Where have you been lurking?" Non asks her.

"To think...I was once linked to the Great Coluan cyber construct. And now I wander the same realm as Candy Crush." Indigo says, ignoring his question. "I go by Indigo nowadays."

"It suits you far more than Braniac 8 ever did." Non comments on her choice of name.

"I am my own wonam now. I hear you're your own man again."

"Is that your idea of condolences?"

"Not at all. I despised Astra. I'm glad she's dead. Why, did you need a hug?"

"My wife was an exceptional woman."

"Her pathetic devotion to Myriad didn't land her the throne."

"Myriad works. And very soon Astra's dream for what earth can become will be reality."

"I was one eyour dream." Indigo tells him while getting too close and he starts chocking her.

"You have only revealed yourself because Astra is dead. Why?" He asks as Indigo uses her claw hands to remove his fist from her neck.

"To probe to you that her ludicrous plan of living alongside the humans should die with her." Indigo explains to him. "No matter the world, predators cannot live with prey."

"I know you of old. What have you done?" Non asks.

"Just enough. I turned the wheel. Hell is coming to earth. And when it does, only the Kryptonians and I will survive it. See you after the apocalypse." She says before vanishing into the computers once again.

-

Kara has still refused to help them so Alex asked Winn to come in and assist Gwen to help Peter protect his suit from being hacked into by her. Seeing if that were to happen, she could have access to the entire security of the DEO, and more.

"Okay, so your suit should be cyber terrorist proof now." Gwen tells Peter as they're uploading the software into his suit. "But we don't know if it actually works, so let's hope it works. Or we're all doomed." She says.

"You identified Braniac 8. You know her code." Hank tells Winn who's on the computers. "If you can add that to ms. Stacy's encryption, it should lead us right to her."

"You realize I'm learning an alien finding language in the same amount of time it takes to watch an episode of Doctor Who, right?" Winn asks him.

"Fort Pemberton is the nearest nuclear missile silo." Alex tells them as they've learn that's Indigo's target.

"But it's completely off the grid." Peter states to them as the software is updated. "No internet access so nobody could remotely hack them to launch."

"Maybe that's why she was hacking all of these websites." Hank says. "So she can gain access inside, to lure them in."

"But only General Matters has access to that facility." Gwen tells them.

"And where is said General?" Peter asks them.

-

At Fort Pemberton, the General is there when he gets a phone call and as soon as he answers it, Indigo exits the phone and fights off the guards inside and takes their keys for the missiles. She gets ready to launch them, but as soon as she turns the keys, she sees that something is on the monitors...two somethings.

The door then breaks open to reveal Peter and Kara.

"It's over, Indigo." Kara tells her as Peter is aiming her with his repulsers.

"For the human race, that is." Indigo says and she starts fighting the two of them off as one of the nuclear missiles is staring to launch.

Peter blasts Indigo backwards into the computers. "I've got her, you stop that missile." Peter tells Kara and she takes off to the sky to stop it.

Kara flies up to the nuke and pushes it away from National City but it just goes back on course.

"Kara, you need to shut down it's onboard flight computer." Gwen tells Kara after hacking into their com link.

Kara gets what she's saying and flies on top of the missile and listens to what they're saying in order to shut it down and stops the computer system and then watches as it crashes into the ocean.

Back with Peter, Indigo and him Andre still fighting as she seems to be seriously slippery in fighting.

"Their are plenty of missiles left." Indigo tells Peter before she starts to leave through Peter's suit. "I am invincible. I am a god." She tells Peter through his suit.

"You didn't calculate one thing. I'm dating a technical genius, who created a virus protection iron-suit." Peter tells her as Indigo gets shot out of his suit and starts turning from blue to red.

"What...have you done to me?" Indigo asks Peter as Kara returns.

"Virus protection software. Iron-Spider edition." Peter tells her.

"You wouldn't even be here if it wasn't for me." Indigo tells them.

"What do you mean?" They ask her.

"How do you think Fort Rozz escaped the Phantom Zone? For decades, I searched the Phantom Zone with my mind. Looking for a way out when I found your pods. One that has already gotten away, and then yours that drifted into the Phantom Zone. I activated your pod and linked it to the other pod and the prison. I'm the reason you made it to earth. If it weren't for me, you'd probably still be floating in that timeless void." She says before disintegrating into pixels.

"Well, that was creepy." Peter tells Kara and she agrees with him.

-

Later that night, Peter goes back to training alone since Kara isn't around when the doors open revealing said Kara has returned.

"Look who it is. Nice to see you, Skirt." Peter tells her.

"Well, the world almost ended because we weren't on the same page. So, it seems that we need each other. I'm back." Kara tells him.

"Heroes are stronger, when they stand together. My uncle used to say that a lot." Peter tells her.

"Your family would be proud of what you've done." Kara tells him. "Both of your families."

"Yeah, I just wish they were here to see it themselves." Peter admits to her. "You're the second person I've ever been open about my family to." He admits.

"I guess that makes me special." Kara jokes.

"We still need to find out what this Myriad project is all about." Peter tells her.

"We'll do it together. Super friends?" Kara says while holding he hand out.

"Super friends." Peter agrees before shaking her hand, happy to have her back in the fight.