On November 3, 2016, Rupert Gregson-Williams was hired to write and compose the film's music. He was joined by Evan Jolly, Tom Howe, Paul Mounsey, and Andrew Kawczynski, who provided additional music. The soundtrack was released on CD, digital, and vinyl the same day as the film. Australian musician Sia sang a song for the film, titled "To Be Human", featuring English musician Labrinth. Written by Florence Welch and Rick Nowels, the track is also featured on the soundtrack. The soundtrack also features samples from Wonder Woman's theme "Is She with You" from the Batman v Superman: Dawn of Justice soundtrack composed by Hans Zimmer and Junkie XL.
When last we left Wonder Woman #49, the battle brewing ever since DC's METAL cracked open the Multiverse seemed to be reaching its climax. With the Dark Gods playing similar roles to the Greek pantheon, but with all-powerful demands, enslaving humanity, Diana and her twin brother Jason were splitting up to oppose them around the globe. Just as they seemed to knock back their leader, King Best, the Dark Gods launch an assault on Jason.
After taking Despero to the authorities, Wonder Woman and Superman came across the mysterious Pandora, someone Wonder Woman was familiar with. She believed Superman could use her box to trap the evil she unleashed in ancient times; but when Superman touched it, he was overwhelmed by its power. While Pandora took the box and left, the two heroes received news that a new superhuman, Shazam, was entering the borders of Kahndaq. Their confrontation with Shazam turned violent until the rest of the Justice League and the Justice League of America intervened to defuse the situation. Suddenly, Dr. Light lost control of his powers and began absorbing Superman's solar energy, unleashing an energy beam at Wonder Woman. In a fit of anger, Superman killed Dr. Light with his heat vision, an action that caused a fight between the two Leagues.