In One Piece Episode 780, "A Hungry Front! Luffy and the Navy Rookies!", the food-deprived Sanji Retrieval Team infiltrates a Marine base on Fron Island. Luffy, Nami, and others disguise themselves, but Luffy's excessive eating and a Marine's pursuit of Nami lead to a base-wide alarm triggered by Vice Admiral Prodi. This anime-only episode introduces new Marine characters like Grant and Bonam, kicking off the Marine Rookie filler arc.
You can watch the English dubbed version of the episode on Pluto TV . Watch One Piece Season 10 Episode 780 | Pluto TV One Piece (Dub) Episode 780