When a fighter jet crashes on Paradise Island, young Princess Diana asks her mother, Queen Hippolyta, for permission to enter the world of mortals. The queen thinks Diana's request is a good one. She holds a special competition, a test of skill and bravery, to determine which Amazonian will be permitted to go. But Diana, as a royal princess, is denied from entering the trials! Against her mother's wishes, and behind the disguise of a mask, the princess...

Ares, the God of War, returns with the help of his daughter, Eris, planning to bring chaos and violence to the world, but when Eris is injured, Ares demands Wonder Woman save her or he will destroy the world.