In a village, a fire destroys the bread factory, leaving only one loaf to build homes. Mil Dong suggests slicing the bread and using other ingredients to make more houses. They use ketchup as glue and vegetables as trees. Mil Dong builds a lively home for Mil Ka's 14 kids and a colorful one for Mil Ah, the aspiring painter. The houses stack into a sturdy, cozy sandwich home.