Matriarch Nancy knows she hasn't been the best mother but how can she ever tell her daughters the reason why? Lauren and Jenna are as close as two sisters can be and they made a pact years ago to keep a devastating secret from their mother - but is it time to come clean? Lauren's teenage daughter Mackenzie masks her own pain by keeping her mother at a distance. Her mother, aunt and grandmother keep trying to reach her but will it take a stranger to show her the true meaning of family?

When life changes in an instant, the Stewart women are thrown together for a summer and suddenly they must relearn how to be a family. And whilst unravelling their secrets might be their biggest challenge, it could also be their finest moment . . .