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The Deep Sea King
A pack of monsters calling themselves the “Clan of the Seafolk” arrive on the shores of City J intent on invading the land. When the hero sent to fight them is defeated easily by the Deep Sea King himself, Saitama and Genos head for the city to help.
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Other episodes for this season
![The Strongest Man](https://image.tmdb.org/t/p/w300/r5LjUXSYANLC5f6X9qgvAjeEP2X.jpg)
![The Lone Cyborg](https://image.tmdb.org/t/p/w300/mps2UuPnmkxOco5oQePVlwioZKG.jpg)
![The Obsessive Scientist](https://image.tmdb.org/t/p/w300/ywv8d7mCxSnmnS56LNUBjfPzFRd.jpg)
![The Modern Ninja](https://image.tmdb.org/t/p/w300/fX8ypx5hWOfOxJNmlTos1OwyTRb.jpg)
![The Ultimate Master](https://image.tmdb.org/t/p/w300/5xdo0OwyWm9oNv2tX6aKj9Gr3Tw.jpg)
![The Terrifying City](https://image.tmdb.org/t/p/w300/oApEUMM4nfTqyXvaVozqCa3B5uQ.jpg)
![The Ultimate Disciple](https://image.tmdb.org/t/p/w300/z1Nxh00HGfLCHHPuJ1FcunsR6DY.jpg)
![The Deep Sea King](https://image.tmdb.org/t/p/w300/MwsmKJkTsqBDs3Pq7hAjj4Okog.jpg)
![Unyielding Justice](https://image.tmdb.org/t/p/w300/d5h1EgV1xIjlioPnb0exwLYy1ev.jpg)
![Unparalleled Peril](https://image.tmdb.org/t/p/w300/AbWf8PdF1stcXiOwQXCAP7qGo8u.jpg)
![The Dominator of the Universe](https://image.tmdb.org/t/p/w300/5QqxkbKwSCQOW2XXaoyEpMaKtiZ.jpg)
![The Strongest Hero](https://image.tmdb.org/t/p/w300/cndsNTszFoNEOygRIRdvRX85JDP.jpg)