Pepito is a small cowboy, who helps the sheriff to solve crimes and to catch baddies, with the help of his horse "Huracán", and the courage of his dog "Amigo". The story takes place in a peaceful village. One day, Pepito's horse is stolen by a villain, but the kid, with the assistance of Amigo, will help the sheriff to catch the villain. Pepito and the sheriff will discover a big gang, which is conspiring and buying some people to remove the sheriff from his charge.