When Montse goes to Barcelona for a summer English course, she brings a head full of false ideas and a heart full of dreams and love of life. Staying at his sister's, a hostess, free and unbiased, only serves to increase her confusion. Along with her classmates, Nuria and Marimar, Montse is willing to lose her virginity and find guys to start on sex.
One day, without knowing how or why, the birds of a big city leave, disappear. It is believed to be a protest against environmental pollution. Some children (the Regaliz group), then embark on an ecological campaign to get the birds to return to the city.
