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 discussed how Caesar Clown was probably behind the unusual events at the island and that the child abduction cases in that area may have been real. Caesar was dealing with a patient that he said needed to be healed but he sent the patient him to the gas chambers. Brownbeard was tied up and told 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 how Caesar and Law gave them the ability to walk again. Smoker told his men that Caesar was behind the failed experiment and not Vegapunk. Caesar killed his patient with poisonous gas and planned on being the best scientist the world has ever known to surpass Vegapunk himself.

Anime Notes

 * The image of the "Worst Generation Rookies" resembles the cover of Volume 51, with the only difference being the addition of Marshall D. Teach.
 * The image 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).