Episodes

Two Dutch women visiting Panama vanish while hiking in the jungle. Cryptic clues, body parts and their camera point to foul play, but the question of what or who really happened to Kris Kremers and Lisanne Froon remains unanswered.

A woman’s mysterious death in Grand Canyon National Park in 1993 reveals one man’s horrible secret. Robert Spangler ran from his dark past for years but could not suppress the predator within.

A rafting trip for the Rothgeb family in the summer of 1984 ends with a mother and teenage daughter dead and the father, David, under investigation for their double murder.

A 30-year-old man disappears into the Jefferson National Forest, leaving his beloved dog behind in his car. His body is found at a popular swimming hole and pieces of critical evidence are placed beneath his missing posters months after his murder.

In the dead of winter 1977, a suspected serial killer moonlighting as a military police officer abducts four teenagers who were out on a double date in the heart of the Ozarks.

For days in the summer of 1982, a predator stalked a family at their campsite in British Columbia, then made his move. The trail of death and destruction David William Shearing left behind is remembered by all who visit Canada's Wells Gray Provincial Park.

At the start of the school year in 1976, 16-year-old Trenny Lynn Gibson disappeared while on a school field trip in Great Smoky Mountains National Park near Clingmans Dome.

Young lovers, Chynna Deese and Lucas Fowler set out to visit as many national parks in Canada as they could in the summer of 2019. They didn’t make it far before diabolical predators stopped them in their tracks on Alaska Highway 97. Their murders were just the...

A Labor Day family camping trip in Southwest Oregon launches one of the largest search and rescue operations in the country after the Cowden family fails to show up for a scheduled holiday weekend dinner.

In 2015, a Canadian tourist and California therapist are slain inside parks surrounding San Francisco, California just a few days apart.

In 1960, three housewives from Chicago never make it out of Starved Rock State Park alive and police in Illinois quickly realize a piece of nature itself is the murder weapon.

On October 1, 1988 two people entered Presque Isle Park and only one came out alive. The question of who killed Paul Girard on a sacred Native American chief's grave may soon be answered.