I’d call this episode a non-stop action thrill ride, but to its credit, it’s not exactly non-stop. Sure, millions of lives hang in the balance as the Class S heroes fight the alien invaders, but there’s a lovely nonchalance about how they’re fighting, almost like another day at the office, while the ship up above also offers moments of workplace comedy and the inefficiencies of bureaucracy, even on a space pirate ship.
Saitama is laying absolute waste to the ship, but the alien leader’s lieutenants are either off doing their own stuff, hiding out on the bridge, or already dead. That leader, the one-eyed Lord Boros, seems unconcerned with the damage to his ship; instead, he seems to want to meet with the one doing the damage.
But he doesn’t make it easy. Saitama loses his way, then ends up on the bridge by not falling for the oldest trick in the book (being told to go right when he should go left). Then the blue octopus-like lieutenant shows off his elaborate destructive powers, but is really just tossing lots of rocks at Saitama, who dodges everything, then splits the guy’s head in two with just one well-struck stone.
Down on the surface, the heroes eventually figure out they need to destroy the cores of their foe to prevent him from regenerating. Before they do, a lower-class hero laments that as Class S heroes they’re very stuck in their ways and not prone to listening to their inferiors, even if their ways are futile and listening could get them somewhere.
When the progress bar on the artillery department tech’s computer finally fills up, the ship prepares to unleash another barrage of shells on the surface, killing all the heroes below, but Tornado arrives just in time and shows just how useful she is to have around by stopping the falling shells, then turning them around and launching them at the ship.
Saitama doesn’t see the effects of that damage, as he’s deep in the core of the ship, having finally found the Guy In Charge, Boros, who tells Saitama here there to fulfill the prophecy of a warrior who is his match in a fight, thus curing him of his existential ennui.
We’ve seen how similar Saitama and Mumen Rider are, but Boros could be an example of what happens when someone with Saitama’s level of ability (or something close to it) uses his power for so long he runs out of enemies to fight.
Saitama destroys his armor easily enough, but Boros gets right back up, unharmed by one punch and unleashing his full power. Only one episode left to see how many more punches Saitama will need to send this jerk packing.