Crayon Shin-chan: Densetsu wo yobu odore! Amîgo!

At a restaurant, three kindergarten teachers discuss plans for the upcoming sports day event. Miss Matsuzaka suggests samba dance, which is met with skepticism by her colleagues. Late at night, an inebriated Miss Yoshinaga is ambushed by an entity resembling herself. The next day, Shinchan's pranks surprise Misae, who then convinces Principal Takakura to include samba in the event. As people begin to experience strange occurrences, they realize that their friends and teachers may be doppelgangers. The children start to notice anomalies in those around them, leading to a chaotic situation at school where everyone is dancing in unison to psychedelic music.