In Japanese With English Selectable Subtitles or (HERE).

Season 4, Episode 30 – “The Final Chapters Special 2”
Eren, as the Founding Titan, advances on Fort Salta with countless other Titans. Appearing before the refugees, who stand on the brink of despair, are Mikasa, Armin, Jean, Conny, Reiner, Pieck, and Levi, who narrowly escaped from the rumbling. The battle between former comrades and childhood friends with Eren concludes here.

Links: HOMEPAGE – TVDB

Attack on Titan S04E30 Attack on Final 480p WEB-DL x264
445 MB
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Attack on Titan S04E30 1080p HULU WEB-DL H264-ACEM
2 GB
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