This is the first of a two part episode so you're getting a bonus today! Two episodes! When two blue barrels are found in the forest in New Hampshire, a horrific and gruesome discovery is made. The contain the bodies of a woman and three small children. The case goes cold and then, the unthinkable happens...police realize they missed one. A cold case detective finds a third barrel and the case gets much worse. This is a fascinating tale as to how a genealogist spent years and years trying to find out who the victims are and when she did? A serial killer was uncovered...and that is just the beginning of this story.