Amy's convinced that her life as she knows it will be over after the arrival of her new baby sister. When pregnancy forces her mother to cancel their long-planned trip to Milan, she feels that things couldn't possibly be worse...until the English Roses have to take Charlotte's younger brother to the circus! Patrick is the brattiest of all brats and his tantrums make Amy glummer than ever at the thought of having a younger sibling. But when she visits her mother in the hospital and holds the baby for the first time, Amy realizes she can't wait to be a big sister after all!