Melinda rescues a child ghost who has been trapped in a house for years by violent spirits.

A bounce back in time to Allison and Joe's wedding finds the couple prepping for their special day---and Allison facing up to the ever-expanding powers of her paranormal gift. Bruce Gray and Kathy Baker return in their roles as Joe's parents.

The sixth season concludes with Charlie and Amita getting married. But before they head off to London, they help Don search for his missing gun that has been involved in a series of crimes.