Avengers: Ultron Forever

Marvel's 2015 one-shot Avengers: Ultron Forever sees writer Al Ewing and artist Alan Davis craft a self-contained, alternate-future tale. The story pits a new generation of heroes, including the formidable Danielle Cage, alongside a time-displaced Thor against the robotic tyrant Ultron. This single issue stands as a compact, high-stakes showcase of Ewing's knack for cosmic-scale plotting and Davis's dynamic, classic superhero art.