Capulina and Viruta drive freight trucks all over the country. Five young girls escape from a nearby boarding school and climb into their truck without them knowing. When they discover the girls, the girls threaten to accuse them of kidnapping unless they take them far away from the school. The girls are not their only problem. Capulina and Viruta are unaware that their cargo contains explosives and their reckless driving can make them explode at any time.