As in other stories, society is concerned with the collateral damage done by superheroes and there is a movement to rein in the Avengers. Specifically, the Avengers would work under the authority and supervision of the United Nations--a concept immediately rejected by Captain America (Chris Evans). This conflict parallels the real-life struggle between globalism and nationalism.

Those who align with Iron Man (Robert Downey Jr.) accede to the popular demands, while Captain America heads the group that rejects the proposal, making them outlaws. Tony Stark agrees to apprehend the rogue Avengers, setting up a battle between the two groups of superheroes.

A significant development is the introduction of Spider-Man (Tom Holland) to the conflict. Marisa Tomei plays Peter Parker's Aunt May, which is a welcome addition.

The antagonist in the film appears to be Bucky Barnes (Sebastian Stan), but Captain America has doubts. Is he unduly influenced by his decades-old relationship with Bucky?

The story about the dissension in the Avengers team paired with great action scenes makes this a strong entry in the canon of the MCU. There is something very elementary about imagining which superhero can beat another superhero, so the battle between the two factions in this film scratches an itch of all fans.