Carrie is Abby's elder daughter, a perfectly put-together young lady who attends an elite private school in Manhattan with her twin sister, Caitlyn. She immediately warms to her nurturing great-grandma, Nell, who welcomes her to Chesapeake Shores. But Carrie fears that she will ultimately be forced to go live with her father and his new wife -- not a pleasant prospect.
Carrie's younger sister, Caitlyn also attends a posh Manhattan private school. During their visit to Chesapeake Shores, she bonds closely with her loving great-grandma, Nell. However, she, too, is plagued by the fear that she and Carrie will be forced to live with their father and his new wife. That's not appealing, to say the least.