Milo the monkey is sad. His mommy has to take a trip, and he really misses her. Even being at school with everyone he knows doesn't help. His friends join in singing and dancing with the teacher for music class, but Milo doesn't want to dance and sing. His friends all play with toys and blocks and games during free time, but Milo doesn't want to play. His teacher, Mrs. Zebra, asks if she can...