El Zurdo, a young and talented boxer is expelled from the Boxing academy and is forced to give an account to his grandfather, his first coach and the only one who can make him come back. On the way to the grandfather's house, he gets involved in a fight and, without knowing the people involved, defends a stranger. He continues his initial path in search of his grandfather, he does not find it in his house or in the bar where he works, when asking in another nearby bar he will discover tragic events.