18-year-old Nacho shows up at the cow-breeding ranch of his father, Marcos, whom he barely knows. His father is worried because, as the ranch’s yearly auction is approaching, several cows are dying without explanation. When Nacho finds out who is killing the cows and why, he understands the magnitude of the problem. Cornered by distress and confusion, he’ll have to choose: being a boss or not being a boss. Perpetuating the system, the insult, the abuse, or refusing to take part in it.