One Piece · S01E32
Witch of Cocoyashi Village! Arlong's Female Leader!
2000-07-19 · 25 min · 3.8 (20) · TMDB
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.