Two college-age young women go hiking in the river swamps of North Florida's Appalachicola River Basin and are never seen again.

Later, some of their things are found, including a camera and a phone that show haunting images of their final terrifying night in the merciless swamp.

Jack Jordan failed to clear the case back when he was the sheriff of Potter County. Now, he's hoping his son, John, can help him solve it so he can die in peace.