Ultimate Fallout #4 is a 2011 comic book issue published by Marvel Comics as part of the Ultimate Marvel imprint. Written by Brian Michael Bendis with art by Sara Pichelli, it marked the debut of Miles Morales, a new iteration of Spider-Man. The story follows the aftermath of the death of the original Ultimate Spider-Man, Peter Parker, introducing Miles, a Brooklyn teenager of African-American and Puerto Rican descent, who gains spider-like powers after exposure to a genetically engineered spider created by Oscorp.
In the issue, Miles grapples with his newfound abilities amid the chaos following Peter's demise, deciding to take up the mantle of Spider-Man in secret. This pivotal comic reimagined the Spider-Man mythos for a modern audience, emphasizing themes of legacy, identity, and heroism across generations. Its introduction of Miles Morales was a groundbreaking moment, bringing diversity to one of Marvel's flagship characters.