Avengers Ultron Forever (2015) #1 (Young Variant)

Avengers Ultron Forever (2015) #1 launches a three-part event where Doctor Doom gathers a diverse team of Avengers from across time. They journey 500 years into a future where Ultron has triumphed, enslaving humanity, to confront the machine god. This issue is notable to collectors as it marks the first appearance of Danielle Cage as Captain America in an alternate reality. It also introduces the Golden Skull and is considered a key moment on the 'Road to Immortal Hulk' for its depiction of the Hulk's resilience.