On Marvel Earth, Spider-Man joins forces with the Avengers to battle Doctor Doom in New York City, but when several civilians are killed in a building collapse as a result, Spider-Man becomes demoralized and finds himself whisked away in a strange spacecraft called the Interdimensional Train. Doctor Doom stows aboard and both find themselves in the Tokyo of the Ultraman universe! Witnessing Ultraman battle a giant Kaiju, Doom craves the Giant of Light’s power and joins forces with Alien Mefilas and his army of Kaiju from the Monster Graveyard to steal it. (Source: Tsuburaya Productions)

This entry includes the extra chapter called 'Taiyou and the World' and the commemorative manga produced by other mangaka. Continuing after the final arc in the manga, the extra chapter presents the aftermath of the story from the perspective of Akane Taiyou.