Kyle Rayner, an experienced Green Lantern and Justice League member, has been diagnosed with a terminal illness that's killing him from the inside. As Kyle battles to hold onto his life, he reflects on a lifetime of pain and mistakes that haunt his mind daily. As Kyle searches for a cure to his mysterious illness, he runs into many old friends along the way such as Wally West, but not without meeting a few enemies as well. Will Kyle Rayner overcome his demons and live to fight another day, or will he succumb to the poisonous intrusive thoughts that are torturing his mind?