Gavin's personal quest for the truth nears its conclusion, forcing Peter to face a dark secret from his past that sheds a disturbing light on his love for Prue. As the net begins to close, the Mansons are forced to acknowledge a truth that could destroy their lives for ever.

Peter is worried that he has lost his daughter for ever and believes that Gavin is on a personal mission against him.

In episode one the lives of Peter and Cassie Manson are turned upside down when their beloved daughter Prue reveals that she is pregnant by her teacher, Gavin Sorenson. Prue plans to keep the baby, drop out of school and marry Gavin. Besides Peter’s aching fear that he has lost his daughter forever, he is rocked by the unnerving certainty that Gavin is on a personal mission against him. Is this just fatherly concern, or has Peter’s love for Prue become an obsession?