Lydia Hoffman owns the shop on Blossom Street. In the year since it opened, A Good Yarn has thrived -- and so has Lydia. A lot of that is due to Brad Goetz. But when Brad's ex-wife reappears, Lydia is suddenly afraid to trust her newfound happiness.

Three women join Lydia's newest class. Elisa Beaumont, retired and bitterly divorced, learns that her onetime husband is reentering her life. Bethanne Hamlin is facing the fallout from a much more recent divorce. And Courtney Pulanski is a depressed and overweight teenager, whose grandmother's idea of helping her is to drag her to seniors' swim sessions -- and to the knitting class at A Good Yarn.