"Okay, here we go," Bruce announces. You all sit outside while Bruce stands in front of a panel and Lang stands in front of his van in the Ant-Man suit. "Time travel test number one. Scott, fire up the uhhh… the van thing."

"Breakers are set," Steve says, "Emergency generators are on standby."

"Good. 'Cause if we blow the grid I don't wanna lose tiny here in the 1950's," Bruce says casually. You all look up at him, slightly alarmed.

"Excuse me?" Lang asks.

"He's kidding!" Nat says quickly, and then in a more hushed tone to Bruce, "You can't say things like that."

"Just… It was a bad joke," Bruce tells him.

"You were kidding right?" Natasha continues, and you look at Bruce.

"I have no idea," Bruce whispers back, "We're talking about time travel here. Either it's all a joke, or none of it is," He shoots Scott a thumbs up, "We're good! Get your helmet on. Scott, I'm gonna send you back a week, let you walk around for an hour, then bring you back in 10 seconds. Make sense?"

"Perfectly not confusing," Lang responds.

"Good luck Scott," Steve tells him, "You got this."

"You're right I do, Captain America," Lang sounds proud. You wonder with some alarm if he's about to die.

"On the count of three," Bruce tells you all, "3...2...1!" He presses a button and Lang's back, but when he opens the mask a teenager is standing inside.

"Huh," You mutter, "That's odd."

"Uh guys," Lang says, "This… This doesn't feel right."

"What is this?" Steve demands.

"What's going on?" Bruce asks, and you almost groan.

"That… Who is that?" Nat asks while Bruce hits another couple of buttons.

"Hold on," Bruce tells you, trying to hide the panic in his voice.

"Is that Scott?" Nat asks.

"Yes, it's Scott!" The teenage Scott exclaims before he's sucked back into the Quantum tunnel and is pulled back. This time an old man stands in the suit.

"Oh Jesus," You turn to Bruce, "Do you have any idea what you're doing?"

"Ow! My back!" Old-man Lang cries out before Bruce sends him back.

"What is this?" Steve asks Bruce, closing in now.

"Can I get a little space here?" Bruce says nervously.

"Yeah," Steve says, "Yeah. Can you bring him back?"

"I'm working on it!" Bruce exclaims. He hits another set of buttons and Lang comes back a third time, this time a baby.

"It's a baby," Steve deadpans.

"It's Scott," Bruce tells him seriously.

"As a baby!" Steve argues.

"He'll grow," Bruce points out.

"He's kind of cute," You offer, "I think I like him better this way."

"Bring Scott back!" Steve exclaims. Once more Scott is sucked into the Quantum Tunnel, and Bruce motions Nat over.

"When I say kill the power, kill the power," Bruce tells her.

"Oh my god," Nat says weakly, rushing over to the generator.

"And…" Bruce pauses, "Kill it!"

Nat pulls the lever and everything shuts down. After a brief second Scott tumbles out of the tunnel looking more or less how he had originally.

"Somebody peed my pants," Lang says immediately.

"Oh thank god," Nat breathes.

"But I don't know if it was baby me or old me," Lang continues, "Or just...me...me."

Bruce throws his hands up into the air enthusiastically, "Time travel!"

Steve looks at him for a moment, before shaking his head and walking away. "What?" Bruce calls after him, "I see this as an absolute win!"

You give Bruce a disarming smile, clapping your hand onto his shoulder, "I think you killed it bud," You tell him, "Three stars for time travel, but five for entertainment."

You find Steve sitting in front of the compound dejectedly, his eyes focused on the ground. You sit down next to him, wrapping your arms around your knees. "Well, it wasn't perfect," You start and he looks at you exasperated, "What? Did you think time travel was going to be easy?"

He looks at you, his blue eyes searching your face, "You okay?"

"Always," You tell him with a small smile, "Now come on, let's see if Lang is-"

The roar of an engine breaks the silence and you both look up to see a black car speeding towards you. Something in your chest clenches as the car skids to a stop a few feet from you, then backs up to close the distance. The window rolls down and Tony's face looks out at you, "Why the long faces? Let me guess. He turned into a baby."

"Among other things, yeah," Steve tells him, "What are you doing here?"

Tony gets out of the car and walks around to the trunk, ignoring Steve's question. "That's the EPR paradox. Instead of pushing Lang through time you might've wound up pushing time through Lang. It's tricky. Dangerous. Somebody should have cautioned you against it."

"You did," Steve says warily.

"Oh did I?" Tony asks, "Thank god I'm here. Regardless, I fixed it," He holds up his right hand with some kind of device on it, "A fully functioning Time-Space GPS. I just want peace," He flashes a peace sign to illustrate his point, "Turns out resentment is corrosive, and I hate it."

"Me too," Steve says.

"We got a shot at getting these stones, but I gotta tell you my priorities," Tony tells him, "Bring back what we lost? I hope, yes. Keep what I got? I have to, at all costs. And… Maybe not dying trying will be nice."

"Sounds like a deal," Steve tells him, shaking his hand. Tony reaches into the trunk and pulls out Steve's shield before holding it out to him. "Tony…" Steve starts.

"Why?" Tony cuts him off, "He made it for you. Plus, honestly, I have to get it out of the garage before Morgan takes it sledding."

"Thank you Tony," Steve says, fitting the shield onto his arm.

"Will you keep that a little quiet? Didn't bring one from the whole team, sorry kid," Tony says giving you a small smile, and his next words are hesitant, "We are getting the whole team, yeah?"

"We're working on that right now," Steve tells him.

When Stark meets your eyes you can see your own barely concealed panic reflected in them.