"A Contracorriente" follows the story of El Canto del Loco, one of the most beloved bands in Spanish pop-rock, from their humble beginnings in a garage in Alcobendas to their meteoric rise to fame. Led by Dani Martín and his cousin David Otero, the band becomes the voice of a generation, conquering stages and hearts with their unforgettable anthems. But success doesn't come without a cost: pressure, creative differences, and individual dreams threaten to destroy the camaraderie that brought them together in the first place.