Episode 491

"Arrival at the Island of Women - Cruel Reality Tortures Luffy" is the 491st episode of One Piece.

Short Summary
Brownbeard takes over Foodvalten, Iva says goodbye to Jinbe and the others. Boa Hancock, the Heart Pirates, and Jinbe make it to Amazon Lily. Luffy wakes up and goes on a rampage on the eastern shore looking for Ace. He later understands that Ace is no longer alive while talking to Jinbe.

Anime and Manga Differences
One Piece is still going by one chapter an episode, the following scenes were added or extened.
 * Jinbe and Ivankov talked about meeting each other thanks to Luffy.
 * A new scene of the Heart Pirates entering the harbor and being met with initial hostility was shown. This also included Hancock and Nyon arguing over whether or not to allow the men to stay on the island. They eventually formed a compromise and allowed the Heart Pirates to dock at the bay.
 * After two weeks, a scene of the Heart Pirates being fed and having a short interaction with the Kuja was shown.
 * When Luffy woke up he was seen damaging the submarine and being chased by the crew before he entered the forest.
 * The scene of Luffy meeting Ace, the start of the flashback, wasn't shown, making this even shorter than the actual chapter.