en Cuevana 3. Gilberto must solve the great problem of traffic lights on a new avenue. Faced with the great workload, his wife Astrid claims the little time he spends with her and her son little Uriel. Gilberto is engulfed in a work cloister, to deduce that the answer is simple: distance over speed equals time. In the end he discovers that in his mission he has left spend three years realizing that looking for a time-saving formula he lost same.