The Green Lantern Corps investigates mysterious attacks on Lanterns across the universe, with Hal Jordan and John Stewart leading the mission. As they delve deeper, they discover a connection to the emotional spectrum—the source of power for various Lantern Corps, including Red, Blue, and Yellow. Sinestro, a former Green Lantern now leading the Yellow Lantern Corps, is revealed to be orchestrating the "War of Light." His goal is to unite the emotional spectrum under his control, imposing his vision of order on the universe.
Hal and John’s contrasting philosophies—Hal’s impulsive nature versus John’s disciplined, tactical approach—become central to their efforts. As they confront different Lantern Corps, such as the rage-fueled Red Lanterns and the hopeful Blue Lanterns, they must find a way to unite these often opposing factions against Sinestro’s growing influence.
The climax unfolds in a massive space battle where Hal, John, and other Lanterns confront Sinestro. Despite their success in stopping his plans, the War of Light leaves the universe in a fragile state. The balance of power among the Lantern Corps remains precarious, setting the stage for future conflicts.
Post Credits: a dark presence stirs in the depths of space, hinting at Nekron, the embodiment of death, who may be preparing to exploit the weakened state of the emotional spectrum, foreshadowing even greater cosmic threats ahead.
