Worlds collide in this meetup between two iconic heroes!

When a battle against Doctor Doom goes awry, Spider-Man is transported across dimensions to a Japan where giant monsters known as Kaiju roam and the country is protected by a giant of light—Ultraman! But when two of their worlds' most dangerous villains form an alliance, will these two heroes be able to live up to their title of hero, or will they be forced to discover that sometimes overcoming evil means that sacrifices must be made?