Mass panic has struck the streets of Tokyo! The media has initiated round-the-clock coverage. Uncontrollable crowds are choking the streets, and kaiju hysteria has gripped the island of Japan for the first time in 50 years! Because the Fantastic Four, the world's first super-hero big-monster battling squad, and playboy industrialist, Tony Stark, have descended on the Land of the Rising Sun! It's an all-out romp with big monsters a-go-go as Droom, Giganto and Eerok, the giant ape, along with hundreds of manic '50s Marvel monsters, trample Tokyo's first-ever Kaiju Museum and Celebration!