Heroes Reborn (2021) #4 is the fourth issue of Jason Aaron's seven-part Marvel event that imagines a reality where the Avengers were never formed and the Squadron Supreme stand as the world's mightiest heroes. This chapter turns its spotlight on Doctor Spectrum, wielder of the alien Power Prism, who has become the most feared enforcer in the cosmos.
The main story pits Spectrum against a vicious, gun-toting bounty hunter, a darker, reimagined Rocket Raccoon, testing the limits of the lawman's authority far from Earth. A backup feature, 'Born in the Stars,' follows the all-new Starbrand as she awakens alone in an unfamiliar universe, deepening the mystery at the event's core.
Written by Jason Aaron with striking cosmic artwork by James Stokoe on the lead story and Ed McGuinness on the backup, the issue blends space-opera spectacle with the event's central question of how this broken world came to be. It is a core installment of the main miniseries, not a standalone tie-in one-shot.