New York, Murakami's Ramen Restaurant

A few days later after Ben finished helping out Mr. Murakami at his restaurant, Superman called Ben to go out for a patrol in Metropolis while Superman is busy heading out to New Genesis for a Justice League mission.

Metropolis

Ben accept the offer to go out for a patrol to Metropolis. As Jetray, he flew around Metropolis until he catches Supergirl on a skyscraper. Jetray landed towards Supergirl, then transforms back to Ben

Supergirl: So... Clark send you here huh?

Ben: Yeah. You know, if you think you could handle this by yourself, I could actually-

Supergirl: No! I mean, its cool to have a company anyway. (while not making an eye contact)

Ben and Supergirl remind silent for a while, then start to continue the conversation again.

Supergirl: You know, I never get to apologize if you're not comfortable when we traveled inside your memories back then...

Ben: That's okay...

(Read chapter 2, part 1-4)

Supergirl: I know what its like to be alone when you're a kid. You know, I hardly had friends back on Argo. What's worse is that my planet was destroyed years ago. So I lost my people, friends, and family...

Ben: I'm sorry... You know, during my days training back at the Rooters, I've heard about Kryton got destroyed years ago. History lessons about planets is part of the Rooters' class.

Supergirl: I did take a look at the Rooters training camp. Seems like harsh for a 10 year old boy like you to survive some military camp.

Ben: I'm not the only kid in that training camp you know. Besides, Rook and I destroyed the Rooters camp years ago, after I've assembled my crew.

Supergirl: You're crew?

Ben: We called ourselves the Unisquad. We're bunch of orphans, outcasts, and outlaws, then we've become heroes to do something good. Rook said that a Green Lantern is accompany them.

Supergirl: Which one?

Ben: Hal Jordan

Supergirl: So why did you finally come back to Earth?

Ben: I miss my home. I kinda thought that Earth needs protection but not anymore. Me and the Unisquad members have always keep in touch. Which is why I've been collecting selfies with some of the League members for memories.

Supergirl: Speaking of selfies...

Supergirl grabs her phone then have a selfie with Ben, but Ben transform into Grey Matter (for secret identity dilemma) to have selfie with Supergirl. She post it on Instagram with Grey Matter's selfie.

Grey Matter: You still have a million followers?

Supergirl: Actually, I have around 5 million followers

Supergirl carrying around Grey Matter while flying around Metropolis, then she starts to get impatient

Supergirl: This is so boring!

Grey Matter: Hey, don't worry about it; back at space, I'd usually have weeks worth of patrols behind me before anything happend.

Supergirl: How did you not go insane?

Grey Matter: I either bugging one of member of the Unisquad or listening to my favorite tunes.

Supergirl: But I just want something to happen.

Metropolis, Outside Mayor's Hall

It was a moment a large explosion rocked the streets at the Mayor's Hall. The Intergang strike the Mayor's Hall and held the Mayor outside the hall as a hostage. The police and the SWAT team unable to shoot since the Intergang are helding the Mayor as hostage and they're wearing Apokoliptan tech suits; which makes them bullet-proof.

Meanwhile, Supergirl and Grey Matter is up at the air

Grey Matter: We can't just jump in without a plan, I have an idea...

Few minutes later, Supergirl quitely throw Grey Matter from above to the Intergang leader, who holding the mayor as hostage. Then Grey Matter quitely sabotage the Apokoliptan tech suit.

Intergang Leader: What the hell is wrong with my suit?

After Intergang leader's suit is sabotage, Supergirl uses her super speed to grab the mayor away from the Intergangs. Then Supergirl turns back and useses her heat vision to sabotage on of the Intergang's suit. And finally, Grey Matter evolved into Ultimate Grey Matter

(MY VERSION of Ultimate Grey Matter will be like Dark Matter, from Kevin 11's Ben 10 2016 reboot. It will be taller than regular Grey Matter and able to have enhance strength and agility, super intelligence, and able to secrete a dark red cerebrospinal fluid which he can harden into a plaque and manipulate it to form weapons resembling the red crystal produced from his fireballs)

Ultimate Grey Matter uses his cerebrospinal fluid to encased on of the Intergang, then sabotage the Intergang's suit.

Ultimate Grey Matter (to Supergirl): That was easier than I thought

After the crisis is over, the Mayor is thanking Supergirl and Ultimate Grey Matter for saving his life. Then Ultimate Grey Matter noticed something with the Intergang's suits

Ultimate Grey Matter: These are Apokoliptan tech

Supergirl: Yeah. The question is how did they got these techs?

Metropolis, S.T.A.R. Labs

A few hours later, Supergirl and Ben brought the Apokoliptan tech to the S.T.A.R. labs where Cyborg, Dr. Silas Stone, and Dr. John Henry Irons (also known as Steel) are analyzing the piece of an Apokoliptan tech

Supergirl: Well Dr. Stone?

Dr. Stone: It matches like the other Apokoliptan tech but not completely. John, can you come here for a moment?

Cyborg: I can't remember the last you asked for help...

John Irons approaches

Dr. Stone: What you've found John?

John Irons: Its definitely from Apokolips, but its bonded by Earth based formula by an atomic level. The combination makes it stronger..

Dr. Silas Stone looks closer to the tech

Dr. Stone: Incredible. That makes it stronger than you, Victor (Cyborg)

Cyborg: Always got an encouraging word huh dad

Dr. Irons than gave the tech to Supergirl and Ben

John Irons: You need a sophisticated resources to produce alloy like this. S.T.A.R. labs can do it but it sure didn't come from here.

Ben: Maybe Wayne Tech, or even-

Supergirl: LexCorp. Why am I not surprise...

Metropolis, LexCorp

Ben then transforms into Stinkfly then fly with Supergirl to LexCorp. Finally, Supergirl and Stinkfly arrives in LexCorp where Lex Luthor is sitting on his table doing his paperwork. Then Supergirl threw the tech towards Luthor

Supergirl: Lose something Lex?

Lex: I was hoping for the Boy Scout to show up. But whatever, so what are you blaming me for now?

Stinkfly: Those weapons this morning. They're based on alien technology but modified by Intergang here on Earth

Lex: Another alien huh? But smells... Ugh. But uuuu that sounds scary. But as you can see, Intergang has connection from all over the planet. It could be anyone. So stop accusing me without any hard evidence...

Supergirl: We'll get to the bottom of this Lex. And when we do, we'll be ready...

Supergirl and Stinkfly flew away from LexCorp.

Metropolis air

Supergirl: I hate it when Luthor always acts innocent

Stinkfly: Starbucks?

Supergirl: Actually, I was hoping that we could go to Bibbo's Diner

Stinkfly: Sounds good...