Green Lantern Corps Vol. 1: Fearsome (The New 52)

When a new menace, The Keepers, begins to march across the space sectors and devouring not only their natural resources but their entire populations, it is up to The Corps, severely outnumbered, to stop them. The Corps soon find one of their own held by the ruthless Keepers and must figure out a way to save their comrade and defeat the Keepers without the Green Lantern's most powerful weapon, their power rings.