Take another look @ a detailed synopsis of the "Captain America: Civil War" teaser screened @ "D23" :
"Ross says 'You either sign yourself over or this is your last stand!'

"We hear 'Captain America' say 'We won't stand for this!'.

"'Iron Man' says 'Then let's fight!'.

"A skyscraper explodes while Cap and Iron Man fight in a baseball field.

"'Bucky' is seen hanging onto a helicopter. Black Widow and Falcon are fighting. 'Black Panther' fights Cap. A close up on 'Crossbones'.
"Then a close up on the walking legs of 'Baron Zemo', who says 'You think your world can survive?'
"'Let's Find Out' says 'Spider-Man', as Spidey fights Zemo, while 'Vision' destroys a helicopter, 'Hawkeye' zips between buildings and 'Ant-Man' punches out Vision. Then Cap and Crossbones fight.
"'Everything you fought for will come crumbling down', says Ross.
"Iron Man shoots Cap, Spidey swings alongside buildings and finally Iron Man punches Cap's shield, followed by the logo "Captain America: Civil War."
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