Salvador follows Salvador Aguirre, an ambulance driver whose life flips upside down after a night of violent clashes between football ultras in Madrid. During the chaos, he discovers his daughter Milena is deeply involved with a brutal neo‑Nazi ultra group called the White Souls, whose racist and violent beliefs clash completely with everything he ever taught her. Shocked and desperate, Salvador sets out to understand how she got drawn into this world and will stop at nothing to save her and uncover the truth, even if it means entering a dangerous world of hate, violence, and radicalization