Before the world knew Bruce Banner was the Hulk. Before Bruce confessed his love to Betty Ross. Before the Hulk was green - there was HULK: GRAY. The explosion of the Gamma Bomb tore Bruce Banner's life apart, unleashing the strongest creature on Earth: the Incredible Hulk! But no matter how powerful he became, his heart still could be shattered by Betty - the daughter of his greatest enemy, General "Thunderbolt" Ross. The Eisner Award-winning team of Jeph Loeb and Tim Sale (DAREDEVIL: YELLOW, SPIDER-MAN: BLUE, CAPTAIN AMERICA: WHITE) continues their insightful look into the early days of Marvel Comics' most popular heroes, unraveling the Hulk's origin - and uncovering a secret that will change the way we look at Bruce Banner forever! Collecting HULK: GRAY #1-6.

Jeph Loeb is an Emmy Award-nominated and Eisner Award-winning writer/producer. In television, his many credits include Marvel’s Agents of S.H.I.E.L.D., Heroes, Lost and Smallville; and in film, Teen Wolf and Commando. He has written nearly every major comics icon, including the Avengers, Hulk, Iron Man, Spider-Man, Captain America, Batman and Superman. From 2010 to 2019, he was Marvel's executive vice president, head of television, in which role he executive produced multiple series for Netflix, beginning with Daredevil in 2015.
Tim Sale lived in a happy home in Seattle, where dogs laid at his feet as he drew and a wonderful woman ate the food he cooked and tolerated his obsession with baseball. He was the artist and co-storyteller on many comics for various publishers, primarily and most notably with the giant talent that is Jeph Loeb — the stories in this volume as well as Batman: The Long Halloween, Batman: Dark Victory and Superman For All Seasons.