The BRIGHTEST DAY continues with Part 3 of the JLA/JSA crossover! Jade is back! But is her return a blessing or a curse? The powerful Starheart empowering Green Lantern Alan Scott is out of control and unleashing its chaotic energy across Earth. What has lured the Starheart here and what familiar threat must the World's Greatest Heroes and the Justice Society of America team up to stop? Also features the third piece of the 5-part interconnecting cover by Mark Bagley and Jesus Merino!