Echoes of the Unknown

In today's episode, we're traveling to Fort Worth, Texas, just a couple of days before Christmas in 1974. Three girls left home for what should have been an ordinary afternoon of holiday shopping. They never returned. More than fifty years later, no one knows what became of them. The disappearance of the girls — who soon became known as the Fort Worth Missing Trio — remains one of Texas's most haunting unsolved criminal cases.

In today's episode, we’re traveling to Texarkana in the spring of 1946, where a series of brutal nighttime attacks transformed a thriving community into a place consumed by fear. Over the course of ten weeks, an unidentified assailant attacked eight people, killing five and seriously injuring three others. The crimes became known as the Texarkana Moonlight Murders, and the elusive gunman earned a chilling nickname: the "Phantom Killer."

In today's episode, we're traveling to a lonely stretch of highway in southeastern Texas. On a December night in 1980, three ordinary people encountered a strange object hovering above the road. They would later describe intense heat, mysterious military helicopters, and painful illnesses that changed their lives forever. Investigators still can't agree on what they experienced — or whether it was something far beyond conventional explanation.

In today's episode, we’re telling the story of a remarkable young writer whose future once seemed limitless. At the age of 12, Barbara Newhall Follett had created her own imaginary world and written a novel that astonished critics across America. But as she grew older, the life she had dreamed of began slipping away. One day, she walked out of her home and vanished without a trace, leaving behind a mystery that has endured for generations.

In today's episode, we're traveling to the Grand Canyon, where in 1928 a young newlywed couple embarked on the honeymoon of a lifetime. They hoped to make history by conquering one of America's most dangerous rivers. Instead, they vanished without a trace, leaving behind an abandoned boat, nearly all of their belongings, countless unanswered questions, and a mystery that has endured for almost a century.