S4 E1 • Vikings in the Desert

Scott Wolter receives a call about alleged Viking artifacts found in the Arizona desert. Using state-of-the-art XRF (X-ray fluorescence) identification technology and insight from a Viking historian, Wolter starts his search in the southwestern desert. From there, new leads take him to California to excavate a supposed buried Viking ship that might have once sailed America’s vast inland sea and to Mexico to examine a petroglyph depicting what could be Viking travelers. The episode produces some unexpected results and opens the door to further expeditions into where the Vikings went and why.

Première diffusion : 28 mai 2019

S4 E2 • Alien Artifacts

Scott Wolter receives artifacts unearthed in central Mexico and is intrigued by the scenes they depict: Mesoamerican people worshipping what can only be described as aliens. After learning they’re over 9,000 years old, Wolter heads to Veracruz, Mexico, to investigate for himself. The hunt leads him into caves with strange inscriptions hinting that an unknown ancient society may have had contact with alien life.

Première diffusion : 4 juin 2019

S4 E3 • Cave of Secrets

Scott Wolter visits a mysterious cave in rural Pennsylvania that made headlines when it was first discovered in the 1980s for reportedly having cultural connections to pre-revolutionary America. Wolter’s investigation leads to the discovery of a strange artifact that may be the remnants of a fraternal society that used the cave for rituals. During his search, he interviews local historians and members of the community, discovering that throughout time, the cave may have been home to some of America’s most important historical events as well.

Première diffusion : 11 juin 2019

S4 E4 • The Ripper Unmasked

The identity of Jack the Ripper has captivated the world for over 100 years. What we know about the infamous killer is that he brutally murdered women with medical precision, wrote taunting letters to the authorities and was able to evade capture. However, shocking new evidence of a potential Freemasonic connection, as well as extensive medical research into a 19th century disease, proves pivotal, launching Scott Wolter on an epic hunt. Wolter wants to prove whether or not Jack the Ripper was actually a famous writer who is still beloved today.

Première diffusion : 18 juin 2019

S4 E5 • Phoenicians in America

Scott Wolter inspects mysterious carvings on a stone that may prove the ancient Phoenicians made it to America more than 1,000 years before Christopher Columbus.

Première diffusion : 25 juin 2019

S4 E6 • The Spy Who Saved America

Scott Wolter leaves no stone unturned in his quest to discover the true identity of Agent 355, a mysterious female operative who was a crucial member of Gen. George Washington's Culper Spy Ring.

Première diffusion : 2 juillet 2019

S4 E7 • Bigfoot of the Bayou

Première diffusion : 9 juillet 2019

S4 E8 • Drake's Lost Treasure

Première diffusion : 16 juillet 2019

S4 E9 • Chicago's Mystery Bomber

Première diffusion : 23 juillet 2019

S4 E10 • Exodus of the Templars

Première diffusion : 30 juillet 2019