Incredible Hulk #21

Part of Marvel's 2000 "Maximum Security" crossover event, this issue drops a gray-skinned Hulk center stage — teeth bared, massive fists clenched, tearing through barbed wire and rubble — while a looming green alien figure with glowing red eyes towers behind him and a blond human companion cowers nearby, all set against a fiery sky swarming with flying saucers. The title "The Truth Is Really 'Out There'" promises writer Paul Jenkins leaning into the extraterrestrial chaos with a knowing wink. Kyle Hotz handles both pencils and inks on the cover, and the result is a brooding, high-stakes image that makes this tie-in issue feel like an event all its own.