Wonder Woman is the story of Diana Prince (Wonder Woman), a superhero who comes from another world to earth in an attempt to put an end to WWI. She first thinks that if she can defeat the spiritual god of war (Ares) mankind will stop fighting.
Diana Prince: Only an Amazon can defeat Ares . . . . And once I do, the war will stop . . . . Once I defeat him, the German men will be free from his influence and the world will be better.
For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms. (Ephesians 6:12)
But after defeating Ares, she finds that the war doesn’t stop. Wonder Woman discovers that there is another factor at play.
Diana Prince: I used to want to save the world. To end war and bring peace to mankind. But then, I glimpsed the darkness that lives within their light. I learned that inside every one of them there will always be both. The choice each must make for themselves—something no hero will ever defeat.
Therefore, just as through one man sin entered into the world, and death through sin, and so death spread to all men, because all sinned . . . (Romans 5:12)