Captain America: Civil War - Trailer
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The Avengers are suffering from an image crisis. As much good that they do and as many lives that they save, the superheroes also cause unlimited amounts of damage to cities and civilisation. The government wish to find an answer to this problem and they decide that all superheroes should be registered and held accountable for their actions.
Tony Stark is brought in to begin talks on behalf of The Avengers, knowing how much damage he's personally done under his superhero disguise, Stark see the government's point and decides that a register wouldn't be entirely unwelcome. Captain America on the other hand has no such wishes; The Cap sees any government intervention as something beyond reasonable requirement. In the middle of all this is Cap's old friend Bucky who could be prosecuted under the new laws. As The Avengers are forced to split into two halves, it looks like there's going to be no way for the old team to form any kind of agreement.
As their opinions deepen and rivalries are deepens, certain members of Hydra begin to tighten their control and their plans for future domination of the world are getting stronger. The Avengers must find a way to put their differences aside in order to beat the real enemy.