Sentiment
It had sort of come as a shock to Loki that S.H.I.E.L.D had discovered his new plot for world domination. He had considered the possibility, yes, but admittedly, he did not expect it. Maybe he should have. Maybe then, he wouldn't have ended back on a very familiar prison cell aboard the S.H.I.E.L.D airship, being transported to a highly secure prison unit. Of course it was not the same cell he had been in the first time; that one fell out of the sky. But the prison was rebuilt. This time, built specifically for Loki, if they had ever needed it. And in the end they did.
The Midgardians would never free him.
It was quite the