In a housing project located on the outskirts of Paris renamed "100% Arabica" by it's inhabitants, African immigrants live side by side. The residents are united by their struggle for recognition in a society where immigrants are often regarded as second class citizens. In a world of exiles, poverty is the common denominator. Against the backdrop, director Zemmouri has brought together two of the biggest and most charismatic stars of the cross-cultural musical form known as Rai, Cheb Mami and Khaled, who play the leaders of a band called Rap Oriental. As the band of musicians starts to gain in popularity, the Imam of the local mosque (Mouss) tries to destroy them by stirring up racial and cultural tensions. However, no one can stop the infectious popularity of the songs in this story of music triumphing over bigotry and violence.
