European and Colombian aficionados of "bambuco" music give their perspectives on whether this Colombian genre has European influences.

A young husband and wife from Colombia speak about how having children of their own has helped to put their relationships with their own parents into perspective despite differences in world view.

At Colombia’s Mono Núñez music festival, native Colombians and foreigners alike share their deep love for traditional Colombian music. At the suggestion of one Colombian musician, some of them agree to create a cultural exchange group so that musicians from various countries can discusss the Andean music they are so passionate about.

Sub30 examines the extent to which having children can help parents to understand their own parents and also introduces us to Ricardo and Eduardo, a homosexual couple living in Bogotá.

Guillermina and Candelario enjoy the afternoon sailing on a boat. Grandpa talks about the importance of learning to laugh at yourself. Guillermina will soon have the chance to prove that she can follow her wise grandpa's advice.

As the festival continues, we meet a group of Colombians who talk about how they've modernized the themes of the Andean music they play. We also meet an Argentinian who shares about the types of songs she performs.

Sub30 examines the goals and desires that parents have for their children as well as the fact that many Colombian men and women are choosing to wait longer to have children. Still, says one young Colombian couple, while one can never be fully prepared to have children, doing so opens the doors to many unexpected life possibilities.

When the events following their initial shock lead to friendship with an eel they encounter in the river, Guillermina and Candelario learn not to judge a book by its cover.

As the festival goes on, we encounter a sixteen-year-old winner of the Best Tiple Player award while some twin singers offer some insight into their particularly well-coordinated voices.

The report regarding couples younger than thirty years old continues. In this episode, two Colombian fathers share their ideas: one about education and the legacy he hopes to pass on to his children, and the other regarding his concern for the safety of his family living in Colombia.

Sub30 introduces us to a clinical psychologist who specializes in transgenerational therapy, which emphasizes the extent to which people subconsciously reenact their family members' behavioral patterns.

Feeling for the vendors who don't get a chance to hear the wonderful music at the Mono Núñez Festival, our host comes up with a plan to take the music to them. He furthermore interviews an Argentinean member of a group who makes Andean music about the similarities and differences between the Andean music made in Argentina and Colombia.

This episode of Sub30 introduces us to a character who, following the death of his mother, travelled across two countries to find the father he never knew.

Our host at the Mono Núñez festival in Colombia continues to interview people who have come to the festival from many countries, expressing his desire to create an integrated musical product: Colombian music with influences from many different countries and cultures.

An itinerant concert at the Mono Núñez gives people who could not otherwise attend the festival the chance to experience some of its music and festivities.