Diana, an Amazonian princess of the island of Themyscira, an island made up entirely of only women, has lived almost her entire life there without ever meeting a single man. Soon, an American Airforce fighter pilot and spy named Steve Trevor crash-lands on the island, and upon meeting Diana, informs her of an ongoing conflict between nations, leading Diana to choose to leave her home and join Steve in stopping it.
It soon becomes clear that this is all being orchestrated by Ares, the god of war, who is disgusted with humanity's flaws, along with Doctor Poison, an infamous female war criminal known for her genius intellect in chemistry and toxicology. Knowing these two must be stopped at all costs, Diana sets out to stop them and end the inevitable suffering in a journey that will turn her into well-known superheroine Wonder Woman.