Nothing is working right. Tony is not a happy camper when that happens. He's trying to keep his head from blowing off or being sliced into by the flying glass but nothing seems to really be working. The Mark VII and the Mark XVII just don't fit together. The suits aren't backwards compatible and the drain on the reactor is terrible as the bottom half can't draw on the top's.

He's just about to try a swan dive and hope that the repulsors will work together anyway when he hears Steve's voice through JARVIS's speakers.

"You're nuts, Cap! You get out of here! I have a suit of armor!" One that he will make work with a little faith and-- Another blast and Tony doesn't have a choice. Iron Man tumbles head over heels into the sea.