Visionary writer Grant Morrison is joined by superstar artist Liam Sharp as together they explore just what makes Hal Jordan tick. It all begins when Earth's Green Lantern encounters a mysterious alien hiding in plain sight, setting off a chain of events that will bring the Green Lantern Corps to its knees. There's an intergalactic conspiracy afoot, as well as a traitor in the Green Lantern Corps' ranks. Hal Jordan has faced the universe's greatest threats, but what he faces next will challenge everything he believes in. Collects issues #1-6 of the hot new series!