Blood will flow in this first-ever Federation crossover event which pulls from the ongoing Star Trek space saga and the Defiant spin off graphic novel series! As emperor of the Klingon Empire, Kahless II has consolidated power, raided ancient tombs and secret bunkers, taken the power of gods for himself, stolen the Bajoran Orb of Destruction, and has begun a slaughter across the stars. But this genocide of gods was just the beginning. For with the power he has stolen, Kahless is about to declare war on all those who do not follow the Red Path. To prevent genocide unlike any since the ancient days of Qo'noS, the crew of icons led by the emissary known as Benjamin Sisko (Star Trek ongoing series) and the renegades who follow a desperate and violent Worf (Star Trek: Defiant) must unite for a common cause. Only they can hope to stop the DAY OF BLOOD. Join creators Jackson Lanzing & Collin Kelly (Captain America and Guardians of the Galaxy), Christopher Cantwell (Namor and Star Wars: Obi-Wan), and Ramon Rosanas (Star Trek, Marvel's Star Wars, and The Astonishing Ant-Man) in this monumental crossover event of epic proportions. Collects Star Trek: Day of Blood, Star Trek: Day of Blood-Shaxs' Best Day, Star Trek 2023 Free Comic Book Day issue, Star Trek issues #11-12, and Star Trek: Defiant issues #6-7.