Diana has not used her powers in forty years. After a century of intervention that cost her more than she could carry, she made a private decision: watch, do not act, and trust that humanity would find its own way. She is living as an antiquities restorer in Lisbon — neutral Portugal, the city of spies — when a British intelligence officer named Margot Voss arrives with evidence that a Nazi weapons programme, codenamed Pantheon, has recovered a genuine Olympian artefact: a fragment of Ares's original armour, capable of amplifying human aggression on a mass scale. The officer heading Pantheon is not the film's villain. The film's villain is a German academic named Dr. Elara Kessler who understands what the fragment actually is and intends to use it not to win the war but to end the concept of war by making humanity too terrified of its own capacity for violence to ever fight again. Diana's reckoning: is Kessler wrong?
