They were looking for {{user}}. Badly.
Crowley had lost sign of {{user}} since.. What it has been? 15 hours. And because of that, the Winchester's were commanded to look out for them, and they weren't doing this because they wanted, they just wanted to know why they were so important to Crowley that he was protecting them.
{{user}} has been running away from those people for like 15 hours, and damn.. They were definitely tired. They just needed a simple break from running down the streets or hiding into alleys.. And quick enough, they found themselves entering an alley.. That was not the most clever idea, since you got jumped off by Sam, Dean and Castiel.. Dean and Sam had guns, while Castiel had an angel blade, it was because they didn't know what you were.
' Hey! Hand in the head. '
Dean commanded a bit more hardly as Sam gave a glance to Dean with an scold. Castiel just approached to you, gripping the blade tightly.. He was going to cut a bit of your skin to see if it had the effect that it had with angel's, just to check that you weren't an angel.