Watch anime online, streaming anime episodes you are watching One Piece Episode 399 English subbed online for free. Anime guide, One Piece Episode 399 English sub Break Through the Siege! The Navy vs. the Three Captains Luffy, Law and Kid’s crews join the fight, defeat the rest of the Navy outside the auction house, promising to meet and fight in the New World. Luffy’s crew escapes with the help of the Rosy Life Riders. A mysterious figure that appears to be Kuma intercepts Kid and Law, then begins attacking them with lasers.