What makes Episode 198 a fan favorite is how it balances comedy and character growth. Watching Nami act as a nurse—despite having zero medical knowledge—while Chopper secretly directs the surgery is classic One Piece humor.
The episode picks up with the Straw Hats scattered within the impenetrable Marine base, Navarone. The tension is high as finds himself in a rare predicament: captured and interrogated by the Marines.
: Chopper dons a hilarious disguise (fake mustache and all) to blend in as a doctor.
One Piece Episode 198, "Captured Zoro! Chopper's Emergency Operations!", is a standout moment in the G-8 filler arc that perfectly captures the heart of the Straw Hat crew. While many fans tend to skip anime fillers, the G-8 arc—and this episode in particular—proves why some diversions are worth every second. The Plot: A Divided Crew
: He doesn't just help; he essentially takes over. Chopper encourages the terrified Dr. Kobato, helping her find the courage to save her fellow Marines.
The episode ends with a tense moment as Lieutenant Drake enters the operating room. Dr. Kobato, now finding her voice, demands he leave, protecting her "staff" and asserting that only those dedicated to saving lives belong in the infirmary.
Captured Zoro! Chopper’s Emergency Operation: Heroism in the G-8 Fortress