When an assassin called Ms. Hellfire sent to kill the Halliwells and all other witches on Friday the 13th is killed, Prue assumes her identity to find out who hired her. Prue soon finds this harder than usual since her boss gives her an ultimatum that she and Jack sell $100,000 worth of goods otherwise they'll be fired. After she is able to continue her investigation, Prue and her sisters have their paths crossed with the demon Barbas. Darryl learns that the sisters are witches.

When Phoebe has a powerful vision involving a ghost looking to exact revenge on an apparently abandoned baby, she talks Darryl into letting her take the baby back to the manor in order to protect him. Prue and Piper assist by tracking down the matriarch of the baby's family to discover the reason why the ghost is trying to harm the baby before he meets the same fate as the other male members of the family. While this is going on, Jack tries to convince Prue to go on a business trip with him, and Piper and Dan get a taste in what life would be like while watching over the baby.