Justice League Giant was one of four Walmart-exclusive DC series that debuted in 2018. The series featured one original Wonder Woman story per issue, with the rest of the issue consisting of reprinted stories. The series was replaced in 2019 by Wonder Woman Giant.
The Wonder Woman feature story was subsequently re-printed in a standalone mini-series.
A day before he went missing, Steve’s fellow pilots Nate and Kate try to cajole him into telling them about his date with Wonder Woman, but he rebuffs their request. The three soon take off in their aircrafts to test the low-energy nuclear reaction flying system. Steve engages the system after the designated checkpoint, but the team suddenly notices a storm in front of them. The control tower is however unable to spot any such thing and Steve tells the others to head back to the base with him. They however get struck by a lightning storm and mysteriously disappear.
Back in the present, Etta tells Wonder Woman they’re unlikely to find Steve since there’s no sign of wreckage while flying over the Bermuda triangle, though she reassures her that he’ll be okay. As they prepare to head back, they notice the same storm that Steve had earlier noticed. Diana’s invisible plane starts breaking after being hit by the lightning storm and the two fall near an unknown island after ejecting, as Diana loses her flying powers. She tells Etta to reach the shore and knocks the sea serpent unconscious after it tries to attack her, realizing she still has strength.
Etta states she wants to rest after Diana expresses her desire to find her plane and she agrees. They talk about how Amazons value their mental faculties and health, while Etta jokes that humans don’t. The next morning, Etta wakes up and is surprised to hear a crab talking back and directing her to where Diana went. As she calls out to her, Diana shuts her mouth and tells her to follow her, showing him a giant jaguar with Steve’s airplane hanging around its neck.
Victor finally comes to in the red room of S.T.A.R. Labs and notices his now cyborg body and is confused. All of a sudden a group of Parademons bursts in and attacks the group, and Victor uses his newly discovered sonic cannon to destroy them, and then sees himself in a mirror, to which he is taken aback. He then jumps out of a hole in the roof, blaming his father for his new body. Meanwhile the Justice League examines Aquaman’s intentions and skills. After getting a demonstration they hold off the Parademons while also fighting the military who have been told to engage all non-humans including superheroes. After debating how to handle the men shooting at them they find themselves in front of a delirious Vic Stone who tries to warn them of an already approaching Darkseid who has now appeared in front of them.
