Unparalleled Peril — 10 :

: The speed and scale of City A's destruction emphasize the "unparalleled" nature of this new threat compared to previous monsters.

: For the first time, we see nearly all the S-Class heroes in one room—from the bratty psychic Tatsumaki to the stoic Silver Fang and the elusive Metal Knight . 10 : Unparalleled Peril

is the tenth episode of the first season of the popular anime series One-Punch Man . It originally aired on December 7, 2015, and serves as the explosive beginning of the "Alien Conquerors" arc. : The speed and scale of City A's

In this episode, the S-Class heroes are summoned to the Hero Association headquarters for an emergency meeting regarding a prophecy by the great seer Shibabawa: "The Earth is in peril!". Almost immediately, a massive alien spacecraft appears above City A, obliterating it in seconds. While the top-tier heroes scramble to deal with the threat on the ground, Saitama simply jumps through the bottom of the ship to deal with the invaders himself, setting the stage for the series' most iconic battle. It originally aired on December 7, 2015, and