Luffy, Sanji, and Yosaku finally reach the island with the help of the sea cow, Momoo, but their arrival is chaotic as their ship crashes into the forest, where they reunite with Zoro.
After helping Zoro escape, Nami is accused of treason by Arlong's officers. To prove her allegiance, she stabs Usopp in the stomach, causing him to fall into the pool. One Piece Episode 33
Johnny, who witnessed Nami's actions from a distance, reports to the rest of the crew that Nami has murdered Usopp. Luffy, Sanji, and Yosaku finally reach the island
This episode is highly regarded for its "shock value," setting up the emotional backstory for Nami that is fully revealed in the subsequent episodes. Johnny, who witnessed Nami's actions from a distance,
Earlier in the episode, Zoro escapes his confinement after Arlong discovers the damage he caused to the base while Nami was secretly assisting him. Watch Guide & Trivia