A bad boy in leather and a good nerd in Levis. Cleo was always the nerdy one. Getting good grades, burying her nose in books, and secretly crushing on the boy of her dreams who conveniently is dating her archenemy. When her eldest sister Caroline leaves for vacation, she puts her sister Cleo in charge of the children she babysits, Nate and Daisy, promising them to be easy and compliant. However, when Cleo shows up on her first day to find that her crush is the older brother of Nate and Daisy, things take an interesting twist.