In rhyming quatrains with a chant-along refrain, a sick cow has a run-in with a sheet on a clothesline and is mistaken for a ghost because her stuffed-up nose turns every "moo" to "boo." She is disheartened when her friends are frightened of her, but she uses the situation to her advantage to scare off a marauding fox. Recognized at last, the cow is nursed back to health by her friends, but a lighthearted twist suggests that the cold is contagious.