Um Yea. Freak? Act Cool?
After the events of Avengers: Age of Ultron, another international incident involving Captain America and the Avengers results in collateral damage, prompting politicians to form a system of accountability and a governing body to determine when to call in the Avengers, which results in the fracturing of the team while they attempt to protect the world from a new enemy.
Captain America: Civil War released May 2016. Just few more months.