Huesos is abuelo's four-legged travieso, a rambunctious troublemaker with a constant ball of energy and a big bite. Nothing and no one is safe from Huesos' mischief and chomping teeth, from grandpa's slippers to the neighborhood's mailman. Until one day, Calaca Pascuala knocks on his door and takes him on a journey through the afterworld. But even there, Huesos can't contain himself. Will he be able to knock, tumble, and chew his way back to grandpa, or will he begin to create new forms of chaos from beyond the grave?