Luna Valente lives with her family in Cancún, Mexico. She goes to school, has her own group of friends, has a job, and loves to skate. However, her life changes when her parents are given a job offer that moves them to Buenos Aires, Argentina. There she finds a new skating rink (named Jam & Roller), learns freestyling, makes new friends, and even falls in love.
A musically talented teenager returns to her native Buenos Aires with her father, Herman, after living in Europe for several years, navigating the trials and tribulations of growing up.
Allegra dreams of joining the Eleven O' Clock music hall company, but her mother, Caterina, won't accept that. Allegra's life changes drastically when she finds a mysterious bracelet that takes her to 1994, the year Caterina was her age and was starting her career in Eleven O' Clock while she lived in Coco's shadow. Cocó is Allegra's grandmother. Will Allegra be able to change the past?