One Piece Episode 858 English Dubbed Episode Title: Another Crisis! Gear 4 vs. Muso Donuts Episode Description: With Luffy losing the advantage, Katakuri goes back on the offensive. Luffy retreats when he realizes his Gear 4 is about to wear off. After his Gear 4 wears off, Luffy flees and comes across Brûlée, whom he uses to escape the Mirro-World. They arrive at Nuts Island, where Big Mom is going on a rampage.