[1] The film opens with the story about how Bingo Bongo was stranded in the African jungle as a baby when his plane crashed (in a manner remniscient and in parody of Tarzan).

Years later, as a grown man with animalistic behavior and still wearing his old pacifier and parachute harness, Bingo Bongo is captured by an expedition, brought to an anthropology institution in Milan for study, and shut in a cage.

At first she makes only slow progress, but a surprise result is achieved when one evening the institute's director drops by: Bingo Bongo not only convincingly manages to pass himself off as a human, complete with fully developed articulation of the human language, he also throws the director off track by introducing himself as Laura's lover.

Because Laura continues to rebuff his romantic advances, however, Bingo decides to return to Africa, with Renato in company, but his efforts are all foiled.

The film ends with Bingo Bongo taking up his work as animal ambassador, most notably by calming down King Kong, who later attends his wedding.