Based on the true story of four friends who decide to install a communal pirate radio station called Rádio Favela in a shanty-town, to give voice to the outcasts' complaints.

The principal character in Helvécio Ratton's delightful film has been adapted from a book and comic created by the Brazilian cartoonist Ziraldo, and tells the tale of a happy-go-lucky 10-year-old child growing up in a city in the 60s.