The Shipton history is complicated. Some families have a guardian angel. The Shiptons have a guardian ancestor who whizzes through the centuries and jumps right in whenever one of her girls is in trouble. All the girls have power and they’re watched over by elder sister Lillian, who takes her job as family trouble shooter seriously.

There’s no shortage of trouble to be sorted out either and even with their own powers each of the girls needs help. First Katherine's oilman fiancé disappears in the Gulf of Mexico, and then Irene's world champion saddle bronc rider fiancé is sabotaged and in danger of being trampled by a bucking bronco. The spider-web of trouble stretching between these three modern sister witches might be too much for even a time-traveling guardian angel to handle on her own.