Life gets pretty boring when you can beat the snot out of any villain with just one punch. Nothing about Saitama passes the eyeball test when it comes to superheroes, from his lifeless expression to his bald head to his unimpressive physique. However, this average-looking guy has a not-so-average problem--he just can't seem to find an opponent strong enough to take on! Garo and Saitama's clash threatens to destroy the world! The scene of their big battle even spreads to outer space... Then, when Garo unleashes a synergistic technique of the killer moves he's learned so far, Saitama counters with Serious Mode. At the conclusion of their collision of fists, a shocking event transpires!