"Alright everyone, I'm probably gonna have to say this more than once but let's try to do it once!" Tony waved his arms and tried to get everyone's attention.

He had finished his work on the security of the Avengers facility and now he was ready to teach them about how to use it. Or, at least, try to use it.

"So! I installed several lockdown codes with varying stages of protection."

Natasha shivered at the word lockdown and Steve gave her a comforting smile.

"Now if we want the basic levels of lockdown say Point Break. It will cover all windows and lock all doors, that's all. The next level would be activated by saying Cover Me! Basically its Point Break with an added bonus of all the lights go out and all electricity is cut." He paused to make sure everyone was still following before he continued.

"Now the next level is only to be used in case it's a real emergency. To activate this one you say Fall Back." Tony's voice was becoming more and more serious as he delved deeper into the protocol.

"All elevators will stop, so will computers and phones, roads will be blocked and air space will be blocked. Armed drones will monitor the perimeter of the building as well as lockdown on the upper floors to make sure that all occupants can remain there and stay safe. Food and water is stored in each apartment and once this protocol is activated it will immediately tell me, Steve, Clint, and Maria Hill. Got it?" Everyone nodded and he exhaled. Looked like he would only have to say it once after all.

Natasha had a bad feeling in her stomach, "all this security is really serious? Is Tony really expecting that bad of an attack?"

Steve sighed, "Keep in mind that we got bombed twice and that since you're pregnant the Red Room will probably be more interested in you. After all you were supposed to be sterile." She nodded and chewed at her lip, "I hope that the Fall Back protocol never has to be used."

"Me too."

•••••••••••••••••••••••••••••••••••••••

*Four weeks later*

Something big was happening. He couldn't quite understand but everyone was leaving. There was a Quinjet in its landing spot and people were milling around. Squinting his eyes he made out none other than Tony Stark.

He felt pain surge through him as he thought of the last time they'd interacted. Each trying to kill the other simply because they'd been filled with too much pain to listen.

It was all his fault, because of him Steve had been forced away from Natasha Romanoff who he knew was very close to him. Glancing down at the metal arm on his left side he grimaced. That arm would always mark him as the assassin who was destined to be sought after and hunted down.

"Steve!" The shout made him look up as the Black Widow herself ran through the crowd. His eyes narrowed slightly, she was different. The way she ran and they way the others drew away from her made him think that something had happened.

She was wearing a thick coat and jeans despite the cool September air. But he was pretty sure that wasn't it.

Turning away he went back to his own jet to try and sort out his mind. It looked like his friends were leaving to go somewhere. A mission maybe but where?

Shortly after, the quiet roar of the Quinjet alerted him that the Avengers had left. He was deeply tempted to go after them but something stopped him.

A feeling maybe. Whatever it was he found it leading him back to the spot where he had been observing.

What he saw made him frown. Black Widow was still standing there, staring in the direction that the jet had gone in. What was she doing still here? His eyes narrowed, something was definitely off.

Unable to pinpoint it though he resigned himself to waiting and watching. When the time was write he would reveal himself.

But for now he would wait.