The tracks hold secrets that no one should ever discover.In the interior of Mato Grosso, the fully operational railway hauls tons of soybeans and corn toward the Port of Santos, pulsing like the main artery of Brazilian agribusiness. Erick, pursued by a hooded man who emerges from the shadows of the rail line, tries to escape the constant, silent presence that follows him relentlessly.When he finally believes he has shaken off the pursuer, Erick stops on the tracks to catch his breath.In a matter of seconds, the man appears behind him. Without a word, he immobilizes Erick with silver tape, firmly binding him to the tracks of that essential railway for the country.Now, pinned to the cold steel, Erick faces pure terror: free himself before the next train passes, loaded with grain bound for the port — or watch those tracks, which drive Brazil's economy, become the exact site of his end.A line with no return. A secret that cannot be revealed. And the clock ticking to the relentless rhythm of the railway.