Episode 589

"Worst of the World - The Scary Scientist Caesar" is the 589th episode of the One Piece anime.

Short Summary
The G-5 marines discuss that Caesar Clown is probably behind the Island and there was a child abduction case in that area. Caesar is dealing with a patient that he says needs to be healed but he sends him to the gas chambers. Brownbeard is tied up and tells Luffy and his crew about the worst generation of the rookies and that Caesar and Law saved him and his men from dying from the poisonous gas and was given the ability to walk again. Smoker tells his men that Caesar was behind the failed experiment and not Vegapunk. Caesar kills his patient with poisonous gas and plans on being the best scientist the world has ever known to surpass Vegapunk himself.

Anime Notes

 * The image of the "Worst Generation Rookies" pretty resembles the cover of the volume 51, with the only addition of Teach.
 * The image of walking-in-snow position of Law during Brownbeard's story resembles the one on the cover of the volume 68.
 * The anime shows more images of what Punk Hazard used to look like before becoming a wasteland.
 * Caesar already has the "GAS GAS" written on his tunic, while in the manga it was omitted (probably due to an error of the author).