Three enslaved orphans (Blockhead, Lucky and Squidge) work in the goldmines in the Underground City ruled by the Evil Emperor, and wish for freedom from their gruelling situation.

Along with other characters, they escape from the mines and are briefly imprisoned, and make a second getaway to search for a mythical Sky Kingdom.

The group appeal to higher forces when confronted by various challenges[6] such as being chased by hyenas,[7] but eventually reach the Sky Kingdom.

The found-object aesthetic of the film has been described by the filmmakers as "junkmation", a stylistic choice necessitated by budget considerations as well as inspired by the wire and metalwork of Africa's folk artists, who often transform discarded items into works of art.

[2] Variety reviewed the film as having a clever found-object look appealing more to grown-ups, but the dialogue and ethnic-stereotype voice performances were a detraction.