On the other side of the track

Apparently the typical story of teenagers falling in love, this story shows far beyond that.
The focus is Marta, Marta's life and dream.
The people around her, a controlling mother, her childhood best friend, a brother always there, and, well a friend of her loving brother, these will help her?... Or try to clip his wings?
Marta is 16 years old, always induced by her mother to swimming, without even speaking in what she really liked.
The drama, the surroundings, discoveries of your life, family and school problems, everything Marta has been through and will pass, will be worth it?
Will by seeking freedom and wanting to go after what she likes and makes her happy, even after all, will she find the answer on the other side of the track?