Sword Art Online: Alicization Episode 21: The 32nd Knight
Episode 21 of 24 of Sword Art Online: Alicization, aired March 9, 2019, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Standing in Kirito and Alice's way is Eugeo, who's undergone the Synthesis Ritual and become an Integrity Knight. Kirito is rattled, until Alice admonishes him into resolving to fight Eugeo with everything he's got.