Nobita finds a lost white dog whom he names Peko while his friends desire an adventure somewhere that still hasn't been explored during their summer vacation. After some research, the five friends and the dog end up going deep into the African jungle just to find out that Peko has a mysterious connection with their destination.

Source: ANN

Note: Screened as a triple feature with Kaibutsu-kun: Demon no Ken and Ninja Hattori-kun: Nin Nin Ninpo Enikki no Maki.

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Parent story: Doraemon (1979)
Other: Kaibutsu-kun: Demon no Ken
Alternative version: Eiga Doraemon: Shin Nobita no Daimakyou - Peko to 5-nin no Tankentai