JustWatch
S01 Episode 1
The Strongest Man
After saving a child, Saitama trains for years to be a hero, becoming so strong he can defeat any opponent with a single punch.
24 mins · Sun, 4 Oct 2015
S01 Episode 3
The Obsessive Scientist
Saitama and Genos find out about the House of Evolution from Armored Gorilla and learn that Genus wants Saitama for his experiments.
24 mins · Sun, 18 Oct 2015
S01 Episode 4
The Modern Ninja
A terrorist group has appeared in F City and leading them is a large person wearing a battle suit named Hammerhead.
24 mins · Sun, 25 Oct 2015
S01 Episode 5
The Ultimate Master
Saitama decides to become a professional hero, and takes up the test together with Genos. However, he barely passes, while Genos achieves full marks.
24 mins · Sun, 1 Nov 2015
S01 Episode 6
The Terrifying City
While lazing around at home, Saitama learns from Genos that if he does not have any activity in one week, he will be fired as a professional hero.
24 mins · Sun, 8 Nov 2015
S01 Episode 7
The Ultimate Disciple
A large meteor from space is heading towards the City Z, and the Hero Association tries to get the S-ranked heroes to help.
24 mins · Sun, 15 Nov 2015
S01 Episode 8
The Deep Sea King
A bunch of creatures from the sea invades City J. Many heroes arrive to stop them. However, they are all defeated by the Deep Sea King.
24 mins · Sun, 22 Nov 2015
S01 Episode 9
Unyielding Justice
Genos confronts the Deep Sea King in order to protect the people in the shelter. However, while trying to protect a child, he is injured.
24 mins · Sun, 29 Nov 2015
S01 Episode 10
Unparalleled Peril
The S-ranked heroes are suddenly called to gather. Saitama and Genos are visiting Silverfang's dojo, and they follow him to the gathering.
24 mins · Sun, 6 Dec 2015
S01 Episode 11
The Dominator of the Universe
Saitama has entered the spaceship that is above City A alone. He goes around destroying the inner structure of the spaceship.
24 mins · Sun, 13 Dec 2015
S01 Episode 12
The Strongest Hero
Inside the ship, Saitama continues his confrontation with Lord Boros. Saitama may finally be able to fight with all his strength.
24 mins · Sun, 20 Dec 2015
