Yu Yu Hakusho Season 4 Steelbook contains episodes 85-112 of the anime directed by Noriyuki Abe.
Sensui's tunnel to the Demon World is on the brink of completion, but Yusuke continues to fight, even after death! The power of an ancestral demon awakens inside the Spirit Detective, bringing him back to finish the battle. Now, the Spirit World is after his head, the Demon World wants him to fulfill his destiny, and an ancient war between three demonic rulers tears Yusuke, Kurama, and Hiei apart. Will order ever be restored to the worlds?
Episode 99 - Remixing Yu Yu Hakusho (2011), Yu Yu Hakusho Trading Card Game Revisited, Episode 108 - Actor Commentary (2011), Episode 110 - ADR & Mixing Commentary (2003), Episode 110 - Supporting Cast Commentary (2003), Episode 111 - Writer Commentary (2003), Episode 111 - Outtakes & Foul-ups (2003), Episode 112 - Leading Cast Commentary (2003), Episode 112 - Memoirs of Yu Yu Hakusho (2003), Yu Yu Hakusho: Season 04 Moments with Cast & Crew, Textless Songs