Bradin, Nikki, and Derrick are three kids from an average, normal Kansas household. Their whole life is turned upside down when their parents are tragically killed in a car accident. Ava Gregory (their aunt) gets custody of her niece and nephews, and they move into her Californian home (in Summerland). Ava, a struggling clothing designer, lives with her best friend and business partner, Susannah Rexford, her friend, an ex-pro surfer, Jay Robertson, and her ex-boyfriend, real estate agent Johnny Durrant. All four of them are highly unequipped to handle children and are not used to including them in their everyday lives.