[That actually gets Steve to soften in sympathy. He rubs his thumb over the bridge of his nose, deciding honesty is better than SHIELD's attempts as easing into the truth.]

Agent Romanov recaptured you. You came with her, and with me, and we met Stark and Banner and Thor in Manhattan. We stopped Loki. You worked as our spotter. Agent Romanov found the key to closing the portal Loki opened up. Stark, Thor, and Dr. Banner held the invasion back long enough for Romanov to do what she needed to do, while I did clean-up on the ground.

[He takes a chair for himself, a token gesture that indicates he trusts Barton not to try to put a knife or an arrow in him.] You really don't remember any of it?