A surfeit of Red Bull and coffee kept Clint in the media room all night.

He spent a couple of hours playing Minecraft with Sam, the rest of the night busy with a single-player game he'd heard about but hadn't had time to try out.

About 6am he dragged himself off the couch and into a hot shower. Out of the shower and into fresh clothes, Clint was finally starting to yawn and thinking about grabbing a nap when there was a quiet knock on the door.

It was Bucky, looking sheepish.

"You still want to show me the range?"