- 1 The Most Wicked Man of East Blue, Fishman Pirate Arlong
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The crew chases after Nami, who stole their ship, and Yosaku takes time during the trip to explain about Arlong and his Fishmen to Luffy and Sanji. Meanwhile, Usopp, Johnny, and Zoro arrive at the island Nami docked at.
Air Date: 2000-07-12
- 2 The Witch of Cocoyashi Village, Arlong's Female Officer
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Zoro is captured by the fishmen after Usopp and Johnny ditch him, and it's revealed that Nami was part of Arlong's crew the entire time. When a group of Fishmen attack Cocoyashi Village, Usopp comes to the rescue.
Air Date: 2000-07-19
- 3 Usopp's Death?! Luffy - Yet To Land?
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After Zoro escapes with Nami's help, she tries to prove her loyalty to the Arlong Pirates by appearing to kill Usopp. Meanwhile, Luffy's group finally arrives at the island.
Air Date: 2000-07-19
- 4 Reunited! Usopp Tells Nami's True Story
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Johnny tells the others about Nami killing Usopp, and Luffy doesn't believe them until Nami appears herself and confirms it. She tells them to stay out of her business and leave without her, but Luffy stubbornly decides to stay on the island. Usopp returns, revealing that Nami only pretended to kill him, and Nami's sister, Nojiko, starts to explain why Nami is acting the way she is.
Air Date: 2000-07-26
- 5 The Hidden Past! Female Fighter Bellemere!
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Nojiko starts her story about Nami's childhood and their adopted mother, Bellemere. Despite being poor and none of them being related by blood, they had a happy life.
Air Date: 2000-08-02
- 6 Survive! The Mother Bellemere and Nami's Family!
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Nojiko continues her story, explaining how their life was ruined when the Arlong Pirates first took over the village.
Air Date: 2000-08-09
- 7 Luffy Stands Up! End of a Broken Promise!
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When a marine officer under Arlong's pay confiscates all the money Nami stole over the years, in order to one day buy the village from Arlong, the villagers decide that enough is enough and fight back, despite Nami's pleads that they don't and that they'd all be killed. Upon seeing Nami's sorrow, the Straw Hats head for Arlong Park.
Air Date: 2000-08-16
- 8 Luffy in Trouble! Fishmen vs. Luffy Pirates!
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The Straw Hats face the Fishmen themselves as the villagers watch from the sidelines.
Air Date: 2000-08-23
- 9 Luffy Drowning! Zoro vs. Octopus Hatchan!
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Arlong has trapped Luffy in the ocean and Zoro faces the six-sword wielding octopus Hatchan.
Air Date: 2000-08-30
- 10 Proud, Tall Warriors! Dramatic Battle of Sanji and Usopp!
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With Hatchan defeated, two of the fishmen battle Sanji and Usopp. Things look grim for Sanji as he attempts to face Kuroobi underwater, and Usopp gets the chance to prove that he too is a brave warrior.
Air Date: 2000-09-06
- 11 Luffy's Best! Nami's Courage and the Straw Hat
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Arlong's officers have been defeated, but Sanji and Zoro prove to be no match for Arlong in their current state. However, with Luffy finally free, he just may be able to defeat the "most wicked man in the East Blue". Meanwhile, Nami finally gathers the courage to face Arlong.
Air Date: 2000-09-13
- 12 Bursting Out! Fishman Arlong, Fearsome Attack From The Sea!
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Luffy returns to the fight, and the battle with Arlong versus Luffy begins.
Air Date: 2000-09-27
- 13 The End of the Fishman Empire! Nami is my Comrade!
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The battle spreads into Arlong Park itself and Arlong is no longer holding back.
Air Date: 2000-09-27
- 14 Setting off with a Smile! Farewell my Hometown, Cocoyashi Village!
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Arlong's reign of terror is over, and no one has anything on their mind except to party. As the crew celebrates, Nami reflects on her hometown and decides to officially join the Straw Hat Pirates.
Air Date: 2000-10-11
- 15 Bounty! Straw Hat Luffy Becomes World Famous!
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As a result of defeating Arlong, Luffy now has the highest bounty in East Blue. News quickly spreads to both friend and foe, including Shanks, who celebrates Luffy's arrival into the world of pirates.
Air Date: 2000-10-25
- 16 Following the Straw Hat! Little Buggy's Big Adventure
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After his fight with Luffy, Buggy was sent flying to another island with several body parts missing. Thus, Buggy begins his journey to find his crew and his body parts, making some unlikely friends.
Air Date: 2000-11-01
- 17 You've Been Waiting For It! The Return of Captain Buggy!
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With Buggy assumed to be dead, his crew fights over who will be the new captain, only to be captured by a tribe of cannibals.
Air Date: 2000-11-08