Melinda has to gain the trust of Ned's classmate to solve the mystery of her brother's death and why he's committing mayhem at the high school, and Justin returns with threats to expose Melinda if she doesn't answer his questions.
Melinda believes Jim is being haunted by the ghost of a man he tried to save, and all Jim wants to do is somehow communicate his remorse. But Melinda's protectiveness causes conflict between them, and may mask what's really happening.
Ned asks Melinda's help when he's injured by what appears to be a ghost haunting his new girlfriend, but as Melinda struggles to solve the mystery of who the ghost is she runs into interference from the girlfriend's family.
An old acquaintance of Rick Payne's comes to town with a familial bombshell, and as Melinda helps him deal with the resentful ghost of his wife she's forced to confront her feelings about having children.