Nuneaton, 1935.

Kathy has grown up at Treetops home for children, where Sunday and Tom Branning have always cared for her as one of their own. She enjoys her life at Treetops Manor, surrounded by her beloved horses, and with a future as a nurse ahead of her, she could wish for nothing more.

But when Tom dies suddenly in a riding accident, life at Treetops will never be the same again. Kathy is distraught, and Sunday, overwhelmed by grief, leaves the running of the estate to her stepson.

In an effort to raise all their spirits, Sunday invites the former residents of Treetops to return to the house for one final celebration before its inevitable closure. But as their financial difficulties mount, will Kathy and Sunday be forced to leave their home?