The footage starts in… India. Surprising. This is where Doctor Banner has been, helping the sick. He’s gone two years without Hulking out.
A little girl comes running to him to get help. Somebody is sick. He follows her…
But it’s a trick. Black Widow is waiting. Bruce asks “How did you find me?” She says “We never lost you” and explains that Nick Fury has known exactly where he is, all along, but that they haven’t needed him until now.
But now they really need him. They’re trying to trace the gamma signature of the Tesseract, and he can help with this.
Will Bruce come quietly? Or is everything about to get smashed up? Well… it looks close, for a moment, but Banner chills and cedes to Ms. Romanoff’s request.
She gives the order to stand down… to a whole flock of SHIELD agents who were, until now, unseen. The heavily-armed Hulk contingency plan.