Neil Sinclair is no more. His transformation into Subject Zero has destroyed his former self and turned him entirely into a merciless warrior with an unquenchable thirst for power and vengeance. As he sets out to destroy all meta-humans who pose as threats to his dominance, it’ll be up to Kal to protect Lois from this monster seeking to exact revenge on the Lane family.
When Neil Sinclair volunteered to become “Subject Zero” and serve as the military’s lab-rat as they conducted experiments on him, he knew he would become the ultimate fighting machine. But after the formula was perfected, Neil become obsessed with his newfound strength and was banished into solitary confinement.