On March 10, 1928, Christine Collins gave her nine-year-old son a dime for the movies and he never came home. Five months later, the LAPD called with good news: they'd found Walter. But the boy they brought her wasn't her son, and when she said so, they locked her in a psychiatric ward. What followed exposed a serial killer, a culture of institutional gaslighting, and a question that stayed open for the rest of Christine Collins' life: did they ever actually find Walter? Episode 24 of Still Unexplained explores the Wineville Chicken Coop Murders, Code 12 commitments, and one of the most haunting cold cases in Los Angeles history.

Two Brazilian electronics technicians were found dead on a remote hilltop in 1966, dressed in matching suits and raincoats, their eyes covered with crude shields cut from sheets of lead. A cryptic handwritten note beside them instructed them to "ingest capsules," "protect metals," and "await signal." Six decades later, no cause of death has ever been officially confirmed. Episode 23 of Still Unexplained explores the Lead Masks Case of Vintém Hill: the secret society of scientific spiritualists, the missing money, the UFO witness, and the forensic disaster that made sure we'd never know the truth.

In March 1922, six people were murdered on an isolated Bavarian farm. The killer stayed for four days, fed the livestock, ate from the pantry, and walked away without a trace. The Hinterkaifeck murders remain Germany's most haunting unsolved case, and more than a century later, no one has ever been charged. This episode covers the chilling weeks before the attack, the catastrophic failures of the investigation, and the four competing theories that each explain everything and prove nothing.

On March 8, 2014, Malaysia Airlines Flight MH370 carrying 239 people vanished from radar over the South China Sea, made a calculated turn back across the Malay Peninsula, and flew south for seven more hours before disappearing into the Indian Ocean. Twelve years and over 140,000 square kilometers of searched seafloor later, the plane has never been found. What the data does show is a cockpit under deliberate, methodical control at the exact moment all communication went dark, a home flight simulator with waypoints tracing the plane's final route, and 239 families still living inside the question of what happened and why.

Season 2 of Still Unexplained brings twenty new mysteries - unsolved crimes, unexplained phenomena, and stories that refuse to be forgotten. From vanished planes to eerie encounters, each episode explores the details, the theories, and the questions that still remain. The search for answers continues May 20.

On February 4th, 1977, fourteen children at a Welsh primary school were separated, handed blank paper, and asked to draw what they saw in the field next to their school. Their headmaster was a skeptic. He designed the test to catch them in a lie. The drawings came back strikingly similar. That was just the beginning. What followed was a year of encounters across Pembrokeshire, Wales, that included a family chased down a country road by an orange light, a 7-foot figure with a blank black visor standing at a farmhouse window, and an entire herd of cattle moved through locked gates in minutes. A hotel owner was publicly dismissed as a liar by RAF officials, while the Ministry of Defence secretly ran an investigation they hid from their own Minister. The children, now in their late fifties and sixties, have never changed their story.

On Christmas Eve 1945, five children vanished from a burning house in Fayetteville, West Virginia, and left behind no remains. The Sodder family spent decades insisting their children had survived, pointing to a missing ladder, two trucks that would not start, cut telephone wires, and a threat made against their father just months before the fire. Then a photograph arrived in the mail in 1967. Still Unexplained explores one of the most haunting cold cases in American history, and the question that never quite goes away: what does a house fire erase, and what does it leave behind?

In October 1809, Meriwether Lewis, celebrated co-leader of the Corps of Discovery and one of the most accomplished men in American history, died of gunshot wounds at a remote Tennessee inn called Grinder's Stand. Was it suicide brought on by financial ruin, illness, and despair, or something far more deliberate? With a nearly moonless night, a witness who may have seen the impossible, a possible forged letter, and a suspected Spanish spy with motive, the mystery of Lewis's final hours has outlasted every attempt to close it.