William Marston's earliest works were notorious for containing subversive "bondage and sapphic-undertones" subtext. Among Wonder Women's infamous catchphrases, "Suffering Sappho", was a direct reference to lesbianism. Fredric Wertham's Seduction of the Innocent referred to her as the "lesbian counterpart to Batman" (whom he also identified as a homosexual). After Marston's death in 1947, DC Comics downplayed her sexuality and feminist origin. Wonder Women, without Marston's creative direction, become more "traditional" superhero fair; the lesbian relationships and sexual imagery disappeared from the "Wonder Woman" comic, along with Wonder Woman's super powers. During the Comics Code Authority-decades since, Wonder Woman's subversiveness had been gradually stripped away; subsequent comic book writers and artists either didn't know know what do with her or barely hinted at Wonder Woman's erotic legacy. Similar to whitewashing, Wonder Woman's queerness and feminist identity throughout the latter half of the 20th century was never discussed and rendered "invisible" in adaptations in favor of the dominant sexism portrayal of women in comic books.
One of the things I love about event comics is that sometimes even a middling to bad event can lead to a great spin-off or post event tie in. Day of Judgement gave us J.M. DeMatteis's run on The Spectre. Infinite Crisis gave us Jeff LeMire's great run on Superboy. While not a new series, Dark Nights Metal allowed James Robinson to have the near perfect ending to Jason's story in Wonder Woman.
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.
The "Lies" story arc runs parallel with and explores Diana's search. No longer able to get into Mount Olympus, Diana tracks down Barbara Ann Minerva, the Cheetah, to get help. Cheetah agrees to help in exchange for Diana aiding her in killing the god Urzkartaga and ending Minerva's curse. The pair battle their way through Urzkartaga's minions, the Bouda, and defeat Andres Cadulo, a worshiper of Urzkartaga that planned to sacrifice Steve Trevor to the plant god. Once reverted to her human form, Minerva agreed to help Wonder Woman find her way back to Paradise Island. During this time, Wonder Woman reconnects with Steve. Minerva eventually realizes Paradise Island is an embodiment of emotion instead of a physical place, so Wonder Woman and Steve head out to find the island. They succeed and Wonder Woman is greeted by her mother and sisters, though Steve senses something is wrong. Wonder Woman comes to realize nothing is as she remembers and, upon using the Lasso of Truth, discovers everything she thought she knew was a lie: she never really returned to Themyscira after departing with Steve years earlier. The revelation shatters Diana's mind and she is left nearly insane. Veronica Cale, a businesswoman who has been desiring to find Themyscira and the leader of Godwatch, sends a military group called Poison after her, but Diana's state has left her vulnerable and oblivious to the danger she and Steve are in. Steve wards them off long enough for them to be rescued, and reluctantly places Diana in a mental hospital so she can get help. While there she comes to grasp the reality she thought she knew was false, eventually coming out of her stupor and able to rejoin the others in tracking down Veronica Cale, who is trying to find Themyscira.