This Nora person, named after Barry's mother, explained that she's from 30 years in the future and she is one of the new guardians of Central City.

"Yeah, I'm gonna definitely need something stronger." Peter says looking at his drink.

Nora then laughs at that. "Peter Parker, always cutting tension with a quip."

"You know our names?" Caitlin asks.

"Of course. I know all of you. Cisco Ramon, Ralph Dibny, Frankie Parker, also known as Metalla, papa Joe, Mama Cecile, little auntie Jenna. She's so cute. May Parker, Harrison "Harry" Wells, Lucius Fox, Uncle Wally, and Caitlin Parker." Nora lists and Peter spits his drink out of shock at that name.

"What?" Cisco asks, not surprised that his friends made it to marriage, it's just shocking to hear.

"I hate my life." Peter finally says as he coughs up the champagne that he gasped in.

"You okay?" Caitlin asks.

"No, I haven't been in the past four years." Peter confesses.

"And your nickname is XS?" Wally asks.

"Clearly not my doing." Cisco says, seeing it's a terrible name.

"No, it's a nickname that you gave me when I was a kid...Mom." Nora tells Iris. "You said I did everything in excess. Guess I've always been like that. Overdoing things, getting in way over my head. Like recently."

"The mistake you made?" Barry asks.

"Big mistake." Nora tells him.

"Which was...?"

"Helping you save the city by destroying the Star labs satellite last night." Nora tells them. "I just couldn't help myself from getting involved. But something happened when I did, because now, I can't seem to go fast enough to open the Speedforce."

"Ex-Excuse me. Are we talking about actual time travel here?" Ralph interrupts as if he doesn't know about the past few years.

"Do you just not pay attention when we have our briefings?" Harry asks.

"Y'all didn't teach him about the Legends?" Wally asks.

"Look, nobody said bubkes about time travel." Ralph says a little too loud as Jenna starts whimpering.

"Shh, Ralph, you're scaring the baby." Caitlin telling him.

"Yeah, you're scaring the baby." Cisco repeats while taking another glass of champagne.

"No, no. She's not scared. She just said she's hungry." Cecile tells them and that shocks them. "She said that...I heard her! I read her mind! I might not be loosing my powers!" She says as she carries Jenna away.

"I'm sorry. I know how bizarre this must seem, meeting your daughter from the future as an adult." Nora says, getting back to her problem. "This was not my plan at all, but I'm stuck here now and you're the only group of people that can help me. So, any ideas?" She asks the group.

-

The team returns to Star labs to see what they can figure out why and who she is and they see she has yellow and purple lightning as she runs around the room.

"Wow, the speed lab is archaic, huh?" Nora asks and they try to block her out to not mess with the timeline.

"All right, this is gonna link us up with your biometrics." Caitlin says as she injects her with the device.

"And thus scrunchy doohickey is gonna analysts ho connection to the..." Cisco says while trying to think straight.

"Speedforce." Peter finishes for him.

She then starts racing around again and the parents approach the others.

"What does it say?" Barry asks.

"Quick analysis of her DNA shows patterns similar to both of yours." Fox says looking over the results.

"What about her being stuck here?" Barry asks.

"She has the Speedforce in her cells, she just isn't going fast enough to get bac." Harry says looking at his own results.

"Yeah, hehehe." Cisco says from the chair.

"How much did you drink at Joe's?" Peter asks him.

"This is the first opportunity I have had to process my breakup with Gypsy, okay?" Cisco tells them. "How was I supposed to know that your future daughter was gonna show up and crash my pity party? How was I supposed to ancitipate that?" He asks Barry and Iris while lying on the floor.

"Ramon's out." Harry says and Barry leaves for CCPD and he asks Wally to ask if the Legends can bring her home.

Fox waves a hand in front of Cisco to see if he's even awake, but he's completely hungover and is out cold.

"So...mrs. Parker." Peter says, seeing this is the first time they've been alone after the news.

"I kinda like the sound of that," Caitlin admits.

"I always thought you would wanna hyphenate." Peter tells her.

Caitlin looks around and bobs her head around while thinking. "Maybe I will, we can always change that tiny detail. The universe shouldn't explode or tear itself apart if we go by Parker-Snow."

"Ehh, I think Snow-Parker sounds better." Peter tells her.

"Mr and mrs Snow-Parker." Caitlin says and turns to him. "Are we actually planning on marriage now?"

"I guess we are, aren't we?" Peter realizes and looks to her. "You ever think about it?"

Caitlin smiles and kisses him on the lips. "I don't think I can spend my future with anyone else, other than you, Peter Parker."

"Same goes for you, Caitlin Snow." Peter says and pecks her when an alert goes off on a metahuman downtown.

"Duty call's, Spider-Man." Caitlin says and lets him go.

-

Peter makes it there and sees Barry isn't here yet since his suit was torn up and Miles has already started to fight the metahuman.

Miles sends a shocking punch to the masked man who's sparking electricity when Barry comes speeding in and saves the guards in his old original suit.

"Going old school today, Flash?" Peter asks him.

"Yeah, it's a little tighter than I remember, though." Barry says when the man gets up and sees the three of them.

He starts charging electricity again and approaches them.

"Now it's my turn, Spider-Man, Flash, Spider-Child." The new guy says.

"Hey! Who you calling child?" Miles asks when a flash of lightening interrupts their showdown.

"Gridlock and the Ultimate Spider-Man?!" A voice asks and they look to Nora in her XS suit. "Schway!"

"Who's she?" Miles asks.

"What are you doing?" Barry asks her.

"No, no, I just wanted to-" Nora was explaining when the Spider's senses go off and the figure sends Barry flying through the air.

"Spider-Man, save Flash." Peter tells Miles who races into the air to catch him.

Peter races in and punches the figure in the face and he gets ready to retaliate when Peter leaps and wraps his legs around his throat and drops him into the ground.

But he's not down yet as he punches Peter in the face with all his strength and sends Peter slamming through several buildings.

-

Miles saved Barry who ended up speeding Peter back where Caitlin gave him a checkup and he has a serious concussion that will be healed in about half an hour.

"Oh, grife. You're mad at me." Nora can tell from her parents.

"No, Nora, we're not-"

"Please don't say disappointed, that's so much worse. I just didn't think it was a big deal. It was only Gridlock." Nora tells them.

"Ha! Gridlock. That's got Cisco writing all over it." Peter says as he holds a ice pack to his head.

"How'd you know him?" Frankie asks.

"The Spider-Flash museum." Nora explains and they all look surprised.

"I'm sorry, did you say Spider-Flash Museum?" Cisco asks.

"Yeah, it has all your first sightings and appearances of both heroes, the first time you teamed up, all the villains you've ever faced alone or together in chronological order. Even your allies and apprentices. I've studied everything from Batroc, the Leaper, to the defeat of Venom and more." Nora lists.

"So you know this guy's real name?" Iris asks.

"Mr. Myles, the curator, he scrubbed all the names for legal reasons. Spider-Man's villains have already gone by their normal names before giving themselves nicknames. Otto Octavius, Venom, Kraven the Hunter, Martian Li's mr. Negative just to name a few." Nora tells them. "But it really shouldn't matter. Gridlock was a one-and-done villain. You guys beat him in one try, or supposed to. Now because of me, he's on the run, and the timeline's all messed up again."

"Nora, hey, look, I've made way bigger mistakes than this time traveling." Barry assures her.

"Yeah. Like tearing apart the fabric of existence and creating a psycho demon god." Peter jokes referring to Flashpoint as he's on a lot of painkillers for his head and some seem to have slipped past his powers.

"Yeah, he's in a lot of pain." Miles says.

"Okay, with that in mind, we'll get this guy. You don't need to worry about that. But the longer you're here, the more the timeline changes. We need to get you home." Barry tells her.

"But I cast go fast enough to get home." Nora reminds him.

"What if we used the tachyon absorption enhancer?" Caitlin asks.

"That might work to give the cells in her body to boost them enough to get her back." Harry agrees as he's taking a sip of his coffee.

"Okay, finding Gridlock and getting Nora home need yo be our priorities." Barry says when Ralph returns with a whiteboard.

"No, no, no, no. Stop, stop, stop, stop. Wait!" Ralph says as the wheels make a lot of squeaks causing Peter's senses to hate the noise.

"Loud!" Peter shouts for his brain that is in agony.

"Okay, this needs to be our priority. Now, I realize that you're all way ahead of me on this time travel business but guys, I think I just discovered something. So if Nora can time travel, that means she can create new timelines, right? New timelines means that parallel timelines can exist." Ralph says, basically talking about the multiverse and they all look annoyed. "So, guys, I think that a whole other universe could exist. I know, I know, it sounds crazy, but there could be a earth where we're all bad guys, or another earth where there's no world hunger, or another earth where they never made that last Indiana Jones movie. Think of the possibilities. It's like some kind of manyverse."

He then turns to see all of their faces.

"And everybody knows about the manyverse." Ralph realizes.

"Multiverse." May corrects him.

"Where did you think my Iron-Spider-Man doppelgänger came from?" Peter asks him.

"Breacher, Gypsy, Harry. Even Miles' powers come from a different reality." Caitlin lists and looks to Miles. "What did you think we meant when we said Harry was from Earth-2?" She wonders and Harry waves his hand.

"That he was from earth also." Ralph states and everyone is annoyed by him not being caught up with them. "You guys really need to make a welcome pamphlet, or at least a PowerPoint or something." He says before banging his head against the board.

"Ralph, can we get off time travel, please? Let's focus on Gridlock, okay?" Barry asks him. "I'll head to CCPD, see what I can dig up. Peter, you rest. Miles, don't let him move. You have permission to shock him with your lightning fighters if needed." He tells Miles as he leaves.

"It's called a venom strike." Miles tells him.

"I'll stay with Nora." Iris offers as they leave. "You thirsty?" She asks Nora.

-

Later, they get everything set up to send her home and call the two back.

"I can't believe I'm wearing the same tachyon enhancer that my dad used to meet the Iron-Spider-Man and Supergirl for the first time." Nora giddies over as Cisco and Fox place it on her. "What happened to the second version? The smaller one that was inside the emblem of my dad's second suit? If he wore that one, he could harness tachyons and share them with me."

"Hey, fan girl, relax." Cisco says as he's holding the device. "We know."

With that, Barry comes in wearing his second suit with the white emblem. "Did all these suits shrink? And why does it smell so bad?"

"Because it's the one you used when you swam against King Shark." Nora tells him.

"You're telling me you haven't washed the suit in two years?" Peter asks him as he places the small enhancer under the emblem.

"We should get going." Barry says.

"Then this is goodbye. From your guys' perspectives, at least. I'll see you in a minute and 27 seconds, but when you see me again, I'll be a baby." Nora tells them.

"I'm sorry we didn't get to spend more time together." Iris apologizes and Nora didn't seem that phases as she hugs Barry and they speed off into the pipeline to start opening a portal.

As they ran, Wally shows up. "Did they leave already?" He asks.

"About to. Why?" Harry asks.

"We have to stop them." Wally warns when they open a portal that only exploded and sent the speedsters flying.

-

Turns out Nora has some sorta negative tachyons that won't allow her to travel to the future and she's trapped here until they can get them out of her system.

With Harry and Fox working on Nora, the others go to find a way to track Gridlock down without their satellite.

"How's the investigation?" Caitlin asks Ralph.

"It just doesn't add up. If Eddie wanted to erase Thawne from existence, why didn't he just have a vasectomy?" Ralph wonders. "But nobody's talking here."

"Probably because they think Gridlock will attack them." Peter guesses as he meets up with them.

"Right, but maybe if I had Crystal Frost or Spider-Man at my side, people will be more willing to tell us." Ralph asks them.

"Buddy, not right now." Peter says regarding him wearing the suit after having his face beat in and Caitlin leaves.

"What did I say?" Ralph wonders.

"When DeVoe took your body, he also made Crystal Frost disappear." Peter explains for her.

"Jeez Louise, no one tells me anything." Ralph complains. "Is she gone for good?"

"No, we know she's still a part of her, but the only lead we have is a memory of her when she was a kid and she was Crystal Frost." Peter informs him.

"How could she have been a meta since she was a kid?" Ralph asks.

"Fox learned she didn't come from dark matter like the rest of the metahumans we've faced and she came from some anomaly in her DNA. Like how I got my powers due to getting bit by a spider." Peter explains.

"She see anything else?" Ralph wonders.

"Her father was with her. Problem is that the man's been dead for years." Peter says.

"Hey, look at this." Cisco calls them over to where he's holding the dark matter scanner. "I present Gridlock. A mystery in five parts. Please note the dark matter levels. Act one, Gridlock attacks the cops before the team arrives."

"These dark matter levels are normal for a man his size." Caitlin says looking over the screen.

"Until act two. Ultimate Spider-Man attacks with a venom strike." Cisco says and drags them to the second place and they see different results.

"His dark matter increases?" Ralph asks.

"And onto act three, Gridlock hits back." Cisco says and they see it keeps multiplying. "Act four, Spider-Man attacks Gridlock. And then act five and final act, Gridlock pulverized Spider-Man."

"Don't remind me." Peter begs as they see they constantly increase.

"How is that possible?" Ralph asks.

"It isn't. Unless every time Gridlock got hit, his cells absorbed the kinetic energy. " Caitlin guesses.

"That would increase his dark matter quotient, thereby increasing his powers." Cisco says. "If this is true, then whatever movement he's exposed to, he's gonna get stronger."

"So if he keeps moving, he's gonna become unstoppable?" Ralph asks.

-

"I scanned the crime scene photos, and we've got a match." Fox says as the team returns to Star labs and Barry had a private conversation with Nora about her being here and pulls up William Lang. "This is not his first time as the CCPD has a warrant to arrest him after carjacking."

"And now he absorbs kinetic energy?" Barry asks.

"He only gets stronger of you punch him, shoot him, throw him into traffic." Caitlin lists.

"Hate to get stuck in that gridlock." Peter jokes.

Cisco lets out a gasp. "Gridlock. Wait...I came up with that name?! I am fortune's fool!"

"So how do we find this guy without Sally the satellite?" Wally asks.

"We don't need a satellite to hack his phone." Harry says as he does that and finds it. "He's at the airport, on a plane taking off. Central City Air, flight 5201."

"Why would he get on a plane?" Iris asks as if it wasn't obvious.

"Because he's gonna crash it." Barry and Peter guess at the same time.

Suddenly, the alarms say the engine has already lost its engine.

"Frankie, think you can stop the plane from plummeting?" Cisco asks her.

"I...I might, if I'm up high enough to watch it I can glide it down safely, I can't stop it." Frankie tells them.

"It's heading for downtown. If Gridlock takes out the other engine, the pilot won't be able to avoid the buildings." Caitlin tells them.

"Thousands of others will die." Peter states the obvious.

"Not if you phase the plane through the buildings." Nora offers as she comes into the cortex. "I read about you doing the same thing in the future when you were fighting Mob Rule."

"Can you do that?" May asks.

"Maybe if Wally helps." Barry says looking to Wally. "But we could use the extra hand." He looking to Nora.

"I can't phase anything." Nora says."I can't even phase myself, let alone at G-force."

Harry then snaps his hands at that. "That's it. Exile the plane is ascending, blows up the other engine, it will slow down before starting to ascend."

"Giving us 10 seconds of zero G's on the plane." Cisco adds.

"Meaning he won't have any kinetic energy, means Gridlock will have no powers." Caitlin finishes.

"Cisco, can you breach them there?" Caitlin asks Cisco.

"No, I'd have to be there in person." Cisco says.

"Then get going, Ramon." Harry tells him.

"I don't have a suit." Barry tells them.

"I actually have a backup." Nora says and hands him a ring with the Flash emblem on it. "I got more than just a list of metas from that museum."

Barry throws his fist out like Reverse Flash and the suit flies out and he places it on. The suit is all bright red with a helmet like cowl and a white emblem.

"Damn. I made that?" Cisco asks, looking over the future suit.

"Ryan Choi, actually." Nora breaks to him.

"Oh, this is a supersuit." Barry says looking over it. "No offense." He tells Cisco.

"None taken." Cisco assures him.

"Let's go." Peter tells them.

-

The second engine goes down and the speedsters all run as Cisco takes Frankie through a breach and they wait for the right moment to breach them into the plane and handcuff Gridlock.

Frankie then gets told to start using her powers and she starts to lift it slowly and it's up to the speedsters on the plane to stop it from crashing into the buildings.

They start to fear as the plane starts to go through the buildings and starts to safety glide into the river where it stops.

"Nice job, Metalla." Cisco congratulates her.

-

"Gridlock is now on his way to Iron Heights metahuman wing where he won't be seen for a while." Cisco reports.

"Thanks to your help." Barry tells Nora. "I'm glad we got to team up."

"Me, too." Nora agrees as Fox comes in with the tachyon enhancer.

"May I present to you, the tachyon absorption enhancer 2.5, a Cisco approved name." Fox says.

"Yes, it is." Cisco agrees.

"Now complete with recalibrated Time Bureau technology from the Waverider." Fox finishes.

"It hasn't been tested, but it should counterbalance the negative tachyons." Harry says and they hand the device to Nora.

"So I can run home now?" Nora asks.

"Or...maybe we hit pause on this thing." Barry says and takes the tachyon enhancer.

"You want Nora to stay?" Iris asks, and everyone isn't sure that's a good idea.

"Yeah, I thought getting her home was our priority." Cisco agrees.

"The longer she's here, the more damage to the timeline we cause." Harry reminds him.

"No, it's just...now I'm thinking maybe we should make sure her powers are working correctly before we send her home." Barry explains.

"And...the timeline?" Peter asks, that being the biggest thing. Even to the smallest of changes, the Speedforce likes to sends it's Time Demons after them and Peter doesn't wanna got through those guys again.

"It's risky, but I don't know. Wally and I were talking about it." Barry says and they face him.

"The Legends have a theory; there see some historical events that are soft. You change those, it's not gonna affect much else. Like catching gridlock late. Then there are those that are fixed. You mess with them, and all sorts of craziness starts to happen."

"Like the night my mom died. Changing that caused Flashpoint." Barry adds.

"Looks like Nora is gonna need a place to stay." Iris says, smiling.

"I'll stay in the lounge." Nora offers.

"What lounge?" Barry asks.

"You guys have never shown him the lounge?" Peter asks Cisco and Caitlin. "You've never seen the lounge?" He asks Barry.

They show the others the lounge of Star labs where Ralph finally rejoins them.

"If Barry can go back in time, why didn't he stop the Thinker from killing me?" Ralph asks them and the three look nervously. "Guys, I'm kidding. I realize that could upset the delicate balance of the universe."

"You talked with Fox, didn't you?" Peter guesses.

"I got a lecture from Fox on everything. Now I'm officially caught up on all the craziness. Besides, if he did that, who knows? He might've created a timeline where I died in that particle accelerator explosion." Ralph adds.

"Wishful thinking." Cisco says as he's fixing the coffee maker. "Kidding. I'm glad we didn't have to hold your hand through everything anymore."

"Well, while you guys were fighting Gridlock, I was running this down." Ralph says and holds an envelope in his hand and passes it to Caitlin.

"What's this?" Caitlin asks.

"An answer. And a lot more questions. Peter told me about your father's death." Ralph explains as they see it's his death certificate. "And Fox told me he found this during his search for a cure for you when you were Killer Frost. The M.E. who signed off on it, Cameron Mahkent? He doesn't exist."

Peter looks at it confused, "So the death certificate..."

"Is a fake." Caitlin finishes and she's seriously confused.