Llama Llama's mother takes good care of him when he has to stay home from school because he is sick, so when Mama Llama begins to feel sick, too, Llama Llama knows how to take care of her.
Bored and frustrated, Llama Llama moves steadily toward a tantrum during a trip with Mama to the grocery store, and Mama realizes there must be a way to make shopping more fun.