S04E10: Secrets of Brother XII
Josh Gates attempts to uncover a treasure left behind by the Aquarian Foundation, an isolated, insidious cult led by the notorious leader known as Brother XII.
Previous Episode 
Season 1
Amelia Earhart
S1E1 / 08 Jan 2015
Temple of Doom
S1E2 / 15 Jan 2015
World's 8th Wonder
S1E3 / 22 Jan 2015
The Legend of Jesse James
S1E4 / 29 Jan 2015
City of Gold
S1E5 / 05 Feb 2015
Viking Sunstone
S1E6 / 12 Feb 2015
Captain Morgan's Lost Gold
S1E7 / 19 Feb 2015
Code to Gold
S1E8 / 26 Feb 2015
Mayan Apocalypse
S1E9 / 05 Mar 2015
Secrets of the Nazca
S1E10 / 19 Mar 2015
Samurai Sword of Power
S1E11 / 26 Mar 2015
Curse of the Golden Bell
S1E12 / 02 Apr 2015
Season 2
The Quest for King Arthur
S2E1 / 07 Oct 2015
Genghis Khan's Tomb
S2E2 / 14 Oct 2015
Blackbeard's Hidden Gold
S2E3 / 21 Oct 2015
Hunting Vampires
S2E4 / 28 Oct 2015
The Real Robin Hood
S2E5 / 04 Nov 2015
Finding Fenn's Fortune
S2E6 / 18 Nov 2015
Japan's Atlantis
S2E7 / 16 Dec 2015
True Cross of Christ
S2E8 / 23 Dec 2015
The Sultan's Heart
S2E9 / 06 Jan 2016
Africa's Gold Hoard
S2E10 / 13 Jan 2016
Kalahari Desert's Lost City
S2E11 / 27 Jan 2016
Yamashita's Gold
S2E12 / 10 Feb 2016
Columbus: Legend or Liar?
S2E13 / 17 Feb 2016
Searching for Shangri-La
S2E14 / 02 Mar 2016
Shangri-La Found
S2E15 / 09 Mar 2016
Lost Mexican City
S2E16 / 01 Jun 2016
Incan King's Mummy
S2E17 / 08 Jun 2016
Nazi Gold Train
S2E18 / 15 Jun 2016
Hitler's Atomic Secrets
S2E19 / 22 Jun 2016
Season 3
Plummer's Gold
S3E1 / 02 Nov 2016
The Lost Tomb of Attila the Hun
S3E2 / 09 Nov 2016
The Vanished Empire
S3E3 / 16 Nov 2016
The Lost Colony of Roanoke
S3E4 / 23 Nov 2016
Cloning the Woolly Mammoth
S3E5 / 28 Dec 2016
Journey to the Ice Age
S3E6 / 04 Jan 2017
Cracking the D.B. Cooper Case
S3E7 / 11 Jan 2017
Lasseter's Gold
S3E8 / 18 Jan 2017
Tracking Tasmania's Tiger
S3E9 / 25 Jan 2017
Captain Kidd's Treasure
S3E10 / 22 Feb 2017
Africa's Cursed Lake of Gold
S3E11 / 01 Mar 2017
The Ark of the Covenant
S3E12 / 08 Mar 2017
England's Vanished Crown Jewels
S3E13 / 15 Mar 2017
Corsica's Nazi Treasure
S3E14 / 22 Mar 2017
Italy's Barbarian Booty
S3E15 / 31 May 2017
India's Atlantis
S3E16 / 07 Jun 2017
Lost Spanish Fortune Found!
S3E17 / 14 Jun 2017
Season 4
Viking Secrets
S4E1 / 27 Dec 2017
Vikings in America
S4E2 / 03 Jan 2018
Origins of Stonehenge
S4E3 / 10 Jan 2018
The Secret
S4E4 / 17 Jan 2018
Butch Cassidy's Lost Loot
S4E5 / 24 Jan 2018
Hunt for the Metal Library
S4E6 / 31 Jan 2018
Great Women of Ancient Egypt
S4E7 / 07 Feb 2018
Egypt's Lost Queens
S4E8 / 14 Feb 2018
Global Game Show: Out of This World
S4E9 / 21 Feb 2018
Secrets of Brother XII
S4E10 / 28 Feb 2018
Season 5
Pyramid of Legends
S5E1 / 29 May 2018
Lost City of El Mirador
S5E2 / 05 Jun 2018
Nazis in Argentina
S5E3 / 12 Jun 2018
Lost Gold of Jean Lafitte
S5E4 / 19 Jun 2018
Mahogany Ship
S5E5 / 26 Jun 2018
Hunt for the Ruby Slippers
S5E6 / 10 Jul 2018
Solved: Mystery of the Lost Ruby Slippers
S5E7 / 05 Sep 2018
Season 6
Heaven and Hell
S6E1 / 07 Oct 2018
Death and Beyond
S6E2 / 14 Oct 2018Edge of Existence
S6E3 / 21 Oct 2018Crossing Over
S6E4 / 28 Oct 2018
Season 7
Egypt Live
S7E1 / 07 Apr 2019
Deciphering the Last Nazi Code
S7E2 / 10 Apr 2019
Mysteries of Jesus
S7E3 / 17 Apr 2019
Atlantis of the Andes
S7E4 / 24 Apr 2019
Lost Gold of Scotland
S7E5 / 01 May 2019
Ghost Ship of the Great Lakes
S7E6 / 08 May 2019
Legend of the Crystal Skull
S7E7 / 15 May 2019
America's Lost WWII Hero
S7E8 / 22 May 2019
The Hunt for the Golden Owl
S7E9 / 29 May 2019
Season 8
Mysteries of the Dead Sea Scrolls
S8E1 / 08 Aug 2019
Treasure of the Copper Scroll
S8E2 / 15 Aug 2019
Chasing the Fortune of Sir Francis Drake
S8E3 / 22 Aug 2019
Mystery of Dead Mountain
S8E4 / 29 Aug 2019
Siberia's Coldest Case
S8E5 / 05 Sep 2019
The Search For Florida's Lost Pirate
S8E6 / 12 Sep 2019
Hunt for the Chupacabra
S8E7 / 19 Sep 2019
Lost Tomb of the Mummy
S8E8 / 19 Sep 2019
Chasing the Snake Kings
S8E9 / 25 Sep 2019
Cracking the Secret
S8E10 / 02 Oct 2019
Gold Rush Of The Atlantic
S8E11 / 10 Oct 2019
Search For The Sultan's Heart
S8E12 / 16 Oct 2019
The Secret Solved
S8E13 / 30 Oct 2019
Season 9
Digging Into D-Day
S9E1 / 05 Feb 2020
Searching for America's Lost Flight
S9E2 / 12 Feb 2020
The Hunt for Our Ancient Ancestors
S9E3 / 19 Feb 2020
Revealing Our Ancient Ancestors
S9E4 / 26 Feb 2020
The Warrior Queen's Treasure
S9E5 / 04 Mar 2020
The Fortune of the Buzzard
S9E6 / 11 Mar 2020
Mysteries of Bermuda Triangle
S9E7 / 18 Mar 2020
Revealing the Triangle
S9E8 / 25 Mar 2020
Season 10
Dillinger's Lost Loot
S10E1 / 21 Jul 2021
The Lost Avenger
S10E2 / 28 Jul 2021
Ransom in the Sky
S10E3 / 04 Aug 2021
The Quest for El Dorado
S10E4 / 11 Aug 2021
Uncovering the Golden City
S10E5 / 18 Aug 2021
America's Titanic
S10E6 / 25 Aug 2021
Season 11
Buried Secrets of Hitler
S11E1 / 25 May 2022
Nazi Buried Secrets
S11E2 / 01 Jun 2022
Dalton Gang's Outlaw Fortune
S11E3 / 08 Jun 2022
Lindbergh's Lost Rivals
S11E4 / 15 Jun 2022
The Hunt for Templar Treasure
S11E5 / 22 Jun 2022
The Bootlegger's Millions
S11E6 / 29 Jun 2022
Escaping the Rock
S11E7 / 06 Jul 2022
Egypt's Lost Tombs
S11E8 / 13 Jul 2022
Egypt's City of the Dead
S11E9 / 20 Jul 2022
Chasing Everglades
S11E10 / 04 Aug 2022
Mysteries of Moses
S11E11 / 11 Aug 2022
Chasing The Mysteries of Moses
S11E12 / 17 Aug 2022
Donner Party Horror and Heroes
S11E13 / 24 Aug 2022
Finding Italy's Lost Empire
S11E14 / 31 Aug 2022
Season 12
Sunken Pyramids of the Nile
S12E1 / 24 May 2023
Mystery of the Flooded Pyramid
S12E2 / 31 May 2023
Lost City of the Gospels
S12E3 / 07 Jun 2023
Treasure of the Pirate King
S12E4 / 14 Jun 2023
Great Lakes' Vanished Warships
S12E5 / 21 Jun 2023
Hunt for Spain's King Arthur
S12E6 / 28 Jun 2023
Looted Treasures of Cambodia
S12E7 / 05 Jul 2023
Cambodia's Stolen Monuments
S12E8 / 12 Jul 2023
Season 13
Missing Heroes of WW2
S13E1 / 15 Nov 2023
Finding the Lost Pilots of WW2
S13E2 / 22 Nov 2023
Lost City of the White Jaguar
S13E3 / 29 Nov 2023
Riches of Spain's Pirate King
S13E4 / 06 Dec 2023
Chasing Bonnie and Clyde
S13E5 / 13 Dec 2023
Sunken Treasure of the Bahamas
S13E6 / 20 Dec 2023
Lost Tomb of the Viking King
S13E7 / 27 Dec 2023
Hunt for the Secret Seaplane
S13E8 / 03 Jan 2024
Season 14
Hunt for Alexander the Great
S14E1 / 20 Jun 2024
Alexander's Lost Tomb
S14E2 / 27 Jun 2024
Traitors' Treasure of 1776
S14E3 / 04 Jul 2024
Sharks vs. Nazis in Paradise
S14E4 / 10 Jul 2024
Lost Bomber of World War II
S14E5 / 18 Jul 2024
Chasing Africa's Atlantis
S14E6 / 25 Jul 2024
America's MIA Heroines
S14E7 / 01 Aug 2024
Season 15
Hunt for Petra's Lost Tombs
S15E1 / 09 Oct 2024
Petra's Secrets Revealed
S15E2 / 16 Oct 2024
Search for Pan Am's Clipper
S15E3 / 23 Oct 2024
America's First Train Robbers
S15E4 / 06 Nov 2024
Dive for America's Pirate Loot
S15E5 / 13 Nov 2024
'Twas the Search for St. Nick
S15E6 / 20 Nov 2024
Season 16
Hitler's Amerikabomber
S16E1 / 18 Jun 2025
The Man-Eating Lions of Kenya
S16E2 / 25 Jun 2025
The Lost Grave of Buffalo Bill
S16E3 / 02 Jul 2025
Shipwreck Triangle of Greece
S16E4 / 09 Jul 2025
Treasure of the Pirate Queen
S16E5 / 16 Jul 2025
Searching for World War II's Lost Hero
S16E6 / 30 Jul 2025
Mystery Ruins of the Stone Age
S16E7 / 06 Aug 2025
Season 17
Mysteries of the Great Pyramid
S17E1 / 05 Nov 2025
Great Pyramid Secrets Revealed
S17E2 / 12 Nov 2025
The Great Gold Rush Shootout
S17E3 / 19 Nov 2025
The Nazi's Lost Super Sub
S17E4 / 26 Nov 2025
The Real Goonies Treasure
S17E5 / 03 Dec 2025
Vanderbilt's Lost Steamship
S17E6 / 10 Dec 2025
