Lamberto Quintero is assassinated and his son intends to avenge him following in his footsteps. The pair of father and son, Antonio Aguilar and Pepe Aguilar star in this action film.
In the city of Aguaprieta, two horses are part of the largest event in the region. The unbeatable horse Moro from the city of Cumpas faces the imposing Zaino de Aguaprieta. Two in a decided race in just 450 rods.
The peasant and revolutionary Zapatista Simon Blanco still in arms but Zapata is dead. Simon with his lieutenant Andres visits his mother and his girlfriend in his hometown. The cacique Onesimo and his brother, the commissioner Martial put ambushes but he eludes them.
