In an alternate reality world that resembles Edo Period Japan, Luffy acts as a member of the police. This is made up of two adventures: in the first, Buggy makes trouble in the town; in the second, a mysterious girl named Vivi appears (aired after Episode 253). This special contains several cameos from characters throughout the entire series. A second pair of episodes were aired after episode 290, continuing this story, as part of the New Year's special.

The Straw Hat Pirates, searching for the great passage "Grand Line", are in trouble when their food runs out! Luffy, searching for food on his own, finds a ship belonging to the pirate, Gary, and takes it over!! He lands at a nearby town... Luffy was attacked by a young girl, Silk, who mistook him for a member of the other pirate gang. As the two eat a meal, they tell their stories. Meanwhile, Gary and his band are burning with anger at Luffy, demanding payment from the town's defenseless citizens...!! (Source: jumpland.com/animetour/op/index_en.html)

The Journey is a Japanese–Saudi Arabian animated film co-produced by Toei Animation and Manga Productions directed by Shizuno Koubun. The film revolves around a potter named Aws who joins a battle to defend his home city. (Source: Wikipedia)

The movie starts off after the events of Episode 3, when Kisaragi had sunk. The Mikawa Fleet (Furutaka, Aoba, Kako, Kinugasa and Tenryuu) are in the middle of Night Battle. Choukai uses Searchlight and gets medium damage, but they win in the end. A New Fleet Girl gets "dropped", emerging from the sea. It is Kisaragi. Kisaragi is brought back to the temporary base in Solomon Islands, but she is suffering from PTSD and has amnesia, unable to remember anyone from back in the anime, excluding Mutsuki... (Source: Wikipedia)