Avengers: Ultron Unlimited #[nn]

This collection brings together the classic 'Ultron Unlimited' storyline from Avengers (1998) #19-22 and #0, plus Avengers Forever #1-2, written by Kurt Busiek with art by George Pérez and others. The saga sees the robotic villain Ultron return with a devastating plan to replace humanity with his own 'perfect' creations, forcing the Avengers—including Captain America, Iron Man, Thor, the Wasp, Scarlet Witch, Vision, Wonder Man, and Firestar—into a desperate battle to save the world from annihilation. It's a defining Ultron story that showcases the character's cold, obsessive genius and the team's resilience against an overwhelming threat.