"Ultimate Fantastic Four" is a comic book series published by Marvel Comics, part of the Ultimate Marvel universe. It reimagines the classic Fantastic Four team, consisting of Mr. Fantastic, Invisible Woman, Human Torch, and The Thing, with a modern twist. The series debuted in 2004 and focuses on their origin story, exploring themes of science, friendship, and responsibility. The storyline features the team gaining their powers after a scientific experiment goes awry. They face various challenges, including battles against iconic villains like Doctor Doom and Galactus. The series is known for its fresh take on the characters and its appeal to both new and longtime fans.