Josh Gates cuts another expedition short to return to his hometown of Boston and pursue the strongest lead in decades for a 40 year old treasure hunt dubbed: The Secret. Following the amazing solve of a Boston puzzle maker could lead him to the very prize he has sought himself for years.

Josh investigates America's daring response to Pearl Harbor, which destroyed a vital Japanese base in the South Pacific. Using brand-new intel, Josh dives in with Project Recover to find 40 planes and 200 American heroes lost in Operation Hailstone.

Josh dives deep into the Navy's heroic Pearl Harbor counterattack, uncovering an eyewitness who shares vivid details of American soldiers' executions. New intel leads to a discovery that changes history -- the first US plane ever found from this battle.

The search for Alexander's remains and fortune extends to four countries.

Josh hunts history's greatest treasure, the tomb of Alexander the Great.

With breakthrough discoveries in Egypt, Josh races to join an active dig of 4000-year-old tombs. Josh gains exclusive access and uncovers mummies and treasure that could solve the mysterious collapse of ancient Egypt's Old Kingdom.

Josh travels across the United States to find the treasures featured in the cryptic 1982 book "The Secret"; Josh meets with members of the book's cult following, who each think they are on the verge of locating one of the 10 remaining treasures.

Josh Gates continues his journey through Egypt to unearth the secrets and possibly the final resting places of Nefertiti and Cleopatra.

Hunting for a lost cache of gold, Josh Gates heads to the Scottish Highlands. His search focuses on a huge gold reserve hidden after the Jacobite Uprising of 1745 and never recovered. Josh joins treasure hunters chasing a new lead across the Highlands.

Josh searches for wreckage of a bomber that helped defeat the Nazis.

Josh dives the waters off Tanzania to find a lost city and its riches.

Josh braves the shark-infested waters off Cape Cod to dive the world's only confirmed pirate wreck. Joining a high-tech recovery mission, Josh chases the multi-million-dollar treasure of Black Sam Bellamy, including coins, gold and jewels.

Josh Gates ventures to Australia's island state of Tasmania to investigate sightings of the supposedly extinct Thylacine, also known as the Tasmanian Tiger.

Josh Gates dives into a mystery below South America's Lake Titicaca. During the investigation, Josh discovers multiple structures of the ancient Tiwanaku people, including ruins hidden in the lake's depths, dubbed "The Atlantis of the Andes".

With word of an urgent lead, Josh jets to Poland to join in the opening of a secret Nazi tunnel system dug into a dormant volcano. Josh helps a local team tear away a stone wall built by the Germans in the last days of World War II.

Josh Gates hunts for Third Reich secrets as he searches for stolen art in a flooded tunnel complex, tries to decode an officer's diary pointing to tons of plundered Nazi gold and visits the ruins of a city burned to ashes in the final days of WWII.

While investigating the fall of the remarkable Mayan Empire, Josh unearths human skulls and ancient Mayan sacrificial altars in the caverns underneath the jungles and ruins of Mexico.

Josh travels to Peru to investigate the giant geoglyphs drawn into the earth by the ancient Nazca tribes and while studying newly found lines joining a Nazca psychadelic ritual, Josh discovers the meaning behind the mysterious tracings.

Josh Gates sets off deep into the Australian Outback, following the footsteps of legendary explorer Harold Lasseter, who claims to have found a vast field of gold.

Josh journeys through the land of the Nile to uncover the buried secrets of three of the most powerful and elusive women in ancient Egypt -- Hatshepsut, Nefertiti and Cleopatra.

Josh Gates takes on the Indian Ocean's punishing waters as he chases the lost treasure of Olivier Levasseur, AKA "The Buzzard," rumored to be worth more than a billion dollars.

Josh tracks down the legend of an outlaw posse who terrorized the Midwest's railroads. The Reno Gang stole a fortune until a vigilante mob exacted violent justice. Josh tracks their lost loot to a cave hideout that could hold millions.

In a search spanning continents, Josh chases the true history of St. Nicholas, the real-life saint who has become known as Santa Claus. Following clues from Turkey to Italy, Josh gathers DNA to try to identify the saint's missing remains.

Josh concludes his investigation into the mysterious Maya city of El Mirador, from the possible burial of the elusive Snake Kings to uncovering the secrets behind the fall of one of history's greatest ancient cities.

Josh Gates goes on a worldwide search for aviation's most famous lost plane. Just before Lindbergh made history, two rivals attempted a Paris to New York transatlantic flight. Chasing new clues, Josh scours two continents to find the lost "White Bird."