Japan's greatest champion Ultraman and Earth's Mightiest Heroes join forces for an epic adventure! Spider-Man has disappeared from New York, an intergalactic invader has arrived on Ultraman's doorstep, and the Kaiju of Earth are acting even more mysteriously than usual. This can only mean one thing: It's time for Ultraman to meet the Avengers! But what cosmic threat is great enough to require a team-up this titanic? Find out as Shin meets Sam, Spacium Ray meets Repulsor Ray and "Thwip!" meets "Shuwatch!" Our assembled heroes are immediately split up: While Captain Marvel and Ultraman team up against two giant, rampaging Kaiju, Captain America leads a dangerous extraction mission into the heart of the USP! But they may find their best efforts come too late as our heroes receive the three-word message that chills the blood of all sentient beings: "Galactus is coming!" COLLECTING: Ultraman X the Avengers (2024) 1-4.