This documentary examines the musical tastes of Puerto Rico's youth. The terms "cocolos" refers to those who prefer "salsa" music, and "rockeros" to those who prefer "rock" music. Through interviews and an array of musical settings the film explores the young people's feelings in a humorist yet serious manner, bringing to the forefront issues of biases and national identity inherent in this innocent yet very powerful form of social entertainment. Includes musical performances by Gilberto Santa Rosa, El Gran Combo, REO Speedwagon and others.