SUPERGIRL #16

KINGDOM OF ZOD: PART ONE! SUPERGIRL RALLIES THE SUPER-FORCE! The Kryptonite Kingdom of El Caldero has been taken over by General Zod! Supergirl gathers her own super-force to infiltrate the Kingdom! Superboy-Prime, Conner Kent, Tomorrow Man, Lois Lane, Steel, Lana Lang, Natasha Irons, Princess Shark, and more of Supergirl's wild cast! But before they can remove Zod from power, he unleashes a dangerous new force...

What is the K-Zone? !