She is seen fighting the Metal Men at the beggining of the Movie. Wonder Woman is in charge of the organization of the Intergalactic Games. She is under pressure because she wants to impress the Ambassador Bek so she can get an invitation to spent a week with them, which she think will help in her preparation to be a Queen in the future. During the competition, she races agains Lashina and Bleez in the "Flying with obstacles" game. She wins despite Lashina constant cheating.
Superhuman Senses: Wonder Woman, due to her demigoddess physiology, has all of her senses superhumanly enhanced, much like those of Superman. This allowed her to clearly see Steve Trevor from miles away when his plane crash-landed near Themyscira. While talking to Bruce Wayne outside his lake house, Wonder Woman was able to spot Cyborg behind a tree spying on them.
During Marston's run, Diana Prince was the name of an army nurse whom Wonder Woman met. The nurse wanted to meet with her fiancé, who was transferred to South America, but was unable to arrange for money to do so. As Wonder Woman needed a secret identity to look after Steve (who was admitted to the same army hospital in which Diana Prince worked), and because both of them looked alike, Wonder Woman gave the nurse money to go to her fiancé in exchange for the nurse's credentials and took Diana Prince as her alias. She started to work as an army nurse and later as an Air Force secretary.
Wonder Woman and the other heroes were finally released from the Firestorm Matrix when Batman used the Lasso of Truth on Firestorm. Superman was still infected with the Kryptonite shard inside his nervous system, but Lex Luthor was able to extract it, saving Superman's life. Luthor also assembled a group of villains that defeated the Crime Syndicate. Later, at the Batcave, Wonder Woman and the Justice League talked about the enemy that destroyed the Crime Syndicate's world and came to the conclusion that Darkseid would return.