After the Avengers leaves some collateral damage, political pressure mounts to install a system of accountability. The new status quo deeply divides members of the team into 2 camps, one led by Steve Rogers and the other following Tony Stark.
In the end this is a movie about friendships and conflict, and what can happen when the latter overwhelms the former. It's about two genuine heroes who can't reconcile their obligations and duties with the friendship they both cherish.
With some incredibly innovative action, some deeper, thought-provoking themes, and a plethora of dynamic characters, both old and new, Captain America: Civil War is among the very best of the Marvel Cinematic Universe.