BIA tells the story of a group of teens who discover, share and develop their talents in the "Fundom", a place where they gather to hang out, create and express their art in a fun-filled and casual environment. Bia Urquiza, the main character, is a 16-year-old girl with great imagination and creativity.

Film student Pau is making a documentary about her sister Andrea, a K-pop fan. Their parents want Andrea to be a dentist like them and to have a stable job and a normal life. She wants to dedicate all of her time to her new cover dance group. But Andrea has another dream that she keeps secret: she wants to be a singer and dedicate her life to music. She wants to prepare herself in Korea, just like her idols. There are many points against it: she is no longer the ideal age, she does not know if she has the necessary talent and she is not Korean. But thanks to the documentary, her group, an unexpected love interest, and a run-in with a famous actor, she'll find the confidence to pursue her dream.

In this alternate world, Bia and Manuel will have a tempestuous relationship. Pixie, the hateful and stunning owner of Laix, decides to buy the Fundom. The great conflict erupts when Pixie announces a concert. This will have Bia and Helena, who in this upside down universe are divas and rivals, fighting to be the headliner in the final show.

Would you like to travel to the world behind the mirror? A behind-the-scenes look at the special episode of "Bia: A World Upside Down", where the universe of the series is turned upside down. We will take a look at the challenge of creating totally different characters, looks, dialogues and new situations, plus all the work and fun of the shoot.