Since mom and dad have made a temporary move from the frigid winters of Grand Rapids to sunny Arizona to protect dad's health, you'd think it'd be pretty sweet at home for 15-year-old Brooke Franklin. Well, think again. Brooke's brothers, Kurt and Chris and her sister Sally are in charge. Though there is the usual bickering about household responsibilities and personal lifestyles, Brooke's siblings share more than a common gene pool; they also share a real concern about Brooke's well-being and the intention to raise their youngest sister correctly. Unfortunately, they just can't agree how to do it.