The film shows a story of children from a South African town flying kites down a hill after one boy is inspired by a colourful feather floating from the sky. The children find materials from places all over the town and produce equally colourful kites. After a walk, they fly the kites and release them into the sky for the ending of the film.
The music that accompanies One by One is a song of the same name, which was originally written and performed by Lebo M for The Lion King. Although the song was cut from the film, it did make it into the Disney Theatrical adaptation, before being used on this short.
One by One was in production for another Fantasia project to be released in 2006, alongside other musical based shorts of the 2000’s (Lorenzo, Destino, The Little Matchgirl), the 2006 project was cancelled and the completed projects such as this have since appeared on Disney's special edition DVDs.