Life gets pretty boring when you can beat the snot out of any villain with just one punch.
Faced with the alien’s frightful power, he decides to get serious! What is the Earth’s fate?!.
Inside the enemy mother ship, Saitama fights Boros.
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! When aliens invade Earth, a group of Class-S heroes finally finds a way to fight back and go on the offensive.
Nothing about Saitama passes the eyeball test when it comes to superheroes, from his lifeless expression to his bald head to his unimpressive physique.
Life gets pretty boring when you can beat the snot out of any villain with just one punch