Seeking answers, Wonder Woman sought out an old friend that she believed could provide the way to Themyscira: Barbara Minerva, the Cheetah. Cheetah agreed to help, under the condition that Diana kill the plant-god Urzkartaga and free Barbara from her curse, which Diana agreed to do. When she located Urzkartaga, however, she discovered Steve Trevor and some of his fellow soldiers had been captured by Colonel Andres Cadulo, who intended to become the embodiment of the god and sacrifice Steve in the process. Wonder Woman freed dozens of Cadulo's captives and, with the help of Cheetah and the women he had captured, succeeded in destroying Urzkartaga and freeing Barbara from the curse of the Cheetah. With Barbara's help, Diana and Steve were able to find "Themyscira", though Diana was surprised to find her mother alive and well despite remembering her as dead at the hands of Hera. After removing her bracelets Diana realized that her past interactions with these representations of the Amazons and her home were in fact an illusion, and that she may have never returned home since she originally left to escort Steve to the United States. Upon this realization, Diana suffered a mental breakdown.
Upon becoming a super-heroine, Wonder Woman became a founding member of the Justice League. Her ambassadorial duties required her to visit Washington D.C., with army officer Steve Trevor as her liaison. When Parademons stormed Metropolis, Wonder Woman resolved to defend the city, meeting the heroes Superman, Batman, Flash, Green Lantern and Aquaman. They also met the young hero Cyborg, who attempted to warn them against the evil alien conqueror Darkseid. Unfortunately, Cyborg's warnings were meaningless, as Darkseid had already arrived. Although Darkseid had initially beat them without effort, Green Lantern rallied them in order to confront Darkseid as a team. Wonder Woman proved crucial in Darkseid's defeat, stabbing him in one of his eyes to prevent him from using his Omega Beams. This gave Superman and Cyborg enough time to throw Darkseid back into his home-world.
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.