Darkseid has kidnapped Jason Blood (AKA the Demon Etrigan) in an attempt to reignite the central core of the planet Apokolips. Now the Justice League led by Batman, Superman and Wonder Woman must rescue their friend. Can the world's greatest team of superheroes stop Darkseid's possession of Etrigan? Or will the supervillain cause a planetary core meltdown that could destroy Apokolips and the entire universe?