Steve is unconvinced, but T'Challa doesn't seem concerned, so he only shakes his head and lets the matter drop, focusing instead on the flight and mission ahead.

He needs to rest, at some point. So does Bucky, who has been operating on a paper-thin margin of exhaustion for weeks now, and they'll need to be sharp once they get to Madripoor.

As they exit the train and head to the landing pad, he's still grating at being kept out of the main action, but he has to agree, reluctantly, that it's the right call.