Set up as a detective agency, with Jiro Sato playing the lead investigator role, this program explores Japanese history events, personas, and mysteries through on-site inspections, latest scientific discoveries, as well as experiments and simulations.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | New Jersey | 2003-07-14 | 60 min |
| Season 1 | Episode 2 | The Mid West | 2003-07-15 | 60 min |
| Season 1 | Episode 3 | New England | 2003-07-16 | 60 min |
| Season 1 | Episode 4 | The Capitol | 2003-07-17 | 60 min |
| Season 1 | Episode 5 | The South East | 2003-07-21 | 60 min |
| Season 1 | Episode 6 | California | 2003-07-28 | 60 min |
| Season 1 | Episode 7 | Texas | 2003-08-04 | 60 min |
| Season 1 | Episode 8 | New York | 2003-08-25 | 60 min |
| Season 1 | Episode 9 | Oregon | 2003-09-01 | 60 min |
| Season 1 | Episode 10 | Philadelphia | 2003-09-08 | 60 min |
| Season 2 | Episode 1 | Civil War Submarine | 2004-06-21 | 60 min |
| Season 2 | Episode 2 | Internment Artwork | 2004-06-28 | 60 min |
| Season 2 | Episode 3 | Mail Order Brides | 2004-07-05 | 60 min |
| Season 2 | Episode 4 | Hollywood | 2004-07-12 | 60 min |
| Season 2 | Episode 5 | Dueling Pistols | 2004-07-19 | 60 min |
| Season 2 | Episode 6 | Riding Crop | 2004-08-02 | 60 min |
| Season 2 | Episode 7 | Migrant Poems | 2004-08-16 | 60 min |
| Season 2 | Episode 8 | Bonnie & Clyde | 2004-08-23 | 60 min |
| Season 2 | Episode 9 | Lost Gold Ship | 2004-09-06 | 60 min |
| Season 2 | Episode 10 | Pop Lloyd Baseball Field | 2004-09-13 | 60 min |
| Season 2 | Episode 11 | Koranic School Book | 2004-09-20 | 60 min |
| Season 2 | Episode 12 | Body in the Basement | 2004-09-27 | 60 min |
| Season 3 | Episode 1 | The Spirit of St. Louis | 2005-06-27 | 60 min |
| Season 3 | Episode 2 | Black Star Line Certificates | 2005-07-11 | 60 min |
| Season 3 | Episode 3 | Arthur Szyk's Earliest Cartoons | 2005-07-18 | 60 min |
| Season 3 | Episode 4 | Cherokee Bible | 2005-07-25 | 60 min |
| Season 3 | Episode 5 | Portrait of George Washington | 2005-08-01 | 60 min |
| Season 3 | Episode 6 | Secrets of the Tape | 2005-08-15 | 60 min |
| Season 3 | Episode 7 | Doc Holliday's Watch | 2005-08-22 | 60 min |
| Season 3 | Episode 8 | Hermann Goering's Shotgun | 2005-08-29 | 60 min |
| Season 3 | Episode 9 | Coney Island Lion | 2005-09-05 | 60 min |
| Season 3 | Episode 10 | Leisureama Homes | 2005-09-12 | 60 min |
| Season 3 | Episode 11 | Home for Unwed Mothers | 2005-09-19 | 60 min |
| Season 4 | Episode 1 | The Chisholm Trail; Harry Houdini Poster; McKinley Casket Flag | 2006-06-19 | 60 min |
| Season 4 | Episode 2 | Wartime Baseball; Confederate Eyeglass; Howard Hughes' Invention | 2006-06-26 | 60 min |
| Season 4 | Episode 3 | Coca-Cola Trade Card; Vicksburg Map; Lawrence Strike | 2006-07-03 | 60 min |
| Season 4 | Episode 4 | Alternative Service Certificates; Carolina Mystery Books; Mickey Mouse's Origin | 2006-07-10 | 60 min |
| Season 4 | Episode 5 | U.S.S. Indianapolis; Highlander Badge; Spirit of St. Louis | 2006-07-17 | 60 min |
| Season 4 | Episode 6 | Orphan Film Reel; Chinese Opium Scale; Hermann Goering's Shotgun | 2006-07-24 | 60 min |
| Season 4 | Episode 7 | Survivor Camera; Alcoholics Anonymous Letter; Tallahassee Mystery Cross | 2006-07-31 | 60 min |
| Season 4 | Episode 8 | Calf Creek Arrow; Doc Holliday's Watch; Black Star Line Stock Certificates | 2006-08-14 | 60 min |
| Season 4 | Episode 9 | Grace Kelly Automobile; Illicit P.O.W. Photos; Mystery Motorcycle | 2006-08-21 | 60 min |
| Season 4 | Episode 10 | Lou Gehrig Autograph; Cleveland Electric Car; Philadelphia Freedom Paper | 2006-08-28 | 60 min |
| Season 4 | Episode 11 | Superman Sketch; Lost Musical Treasure; Rebel Whiskey Flask | 2006-09-04 | 60 min |
| Season 5 | Episode 1 | 3-D Cuban Missile Crisis; Amon 'n' Andy Record; Women's Suffrage Painting | 2007-06-25 | 60 min |
| Season 5 | Episode 2 | Continental Currency; Short-Snorter; Liberty Bell Pin | 2007-07-02 | 60 min |
| Season 5 | Episode 3 | GAR Photograph; Jefferson Pledge; Dempsey Fight Bell | 2007-07-09 | 60 min |
| Season 5 | Episode 4 | Atocha Spanish Silver; Lucy Parsons Book; Ernie Pyle's Typewriter | 2007-07-16 | 60 min |
| Season 5 | Episode 5 | Great Mexican War Posters; Nora Holt Autograph Book; Muhlenberg Robe | 2007-07-23 | 60 min |
| Season 5 | Episode 6 | NC-4: First Across the Atlantic; Howard Hughes Crash; Professor Lowe's Hot Air Balloon | 2007-07-30 | 60 min |
| Season 5 | Episode 7 | Red Cloud Letter; '32 Ford Roadster; Cast Iron Eagle | 2007-08-20 | 60 min |
| Season 5 | Episode 8 | Lincoln Letter; Quaker Map; USS Indianapolis | 2007-08-27 | 60 min |
| Season 5 | Episode 9 | Bill Pickett Saddle; McKinley Casket Flag; Hitler Films | 2007-09-03 | 60 min |
| Season 5 | Episode 10 | USS Thresher; Pete Gray Cartoon; Manhattan Project Letter | 2007-09-10 | 60 min |
| Season 6 | Episode 1 | WWII Diary/Annie Oakley Coin/1856 Mormon Tale | 2008-06-30 | 60 min |
| Season 6 | Episode 2 | Red Hand Flag/Seth Eastman Painting/Isleton Tong | 2008-07-07 | 60 min |
| Season 6 | Episode 3 | Japanese Balloon Bomb/Society Circus Program/Camp David Letter | 2008-07-14 | 60 min |
| Season 6 | Episode 4 | China Marine Jacket/Airstream Caravan/Lincoln Forgery | 2008-07-21 | 60 min |
| Season 6 | Episode 5 | Hindenburg Artifact/Bonus Army Stamp/Dempsey Fight Bell | 2008-07-28 | 60 min |
| Season 6 | Episode 6 | GAR Photograph/Bill Pickett Saddle/Hiter Films | 2008-08-04 | 60 min |
| Season 6 | Episode 7 | Black Tom Shell/USS Olympia Glass/Front Street Blockhouse | 2008-08-11 | 60 min |
| Season 6 | Episode 8 | John Adams Book/Mankato Spoon/NC-4 | 2008-08-18 | 60 min |
| Season 6 | Episode 9 | Shipwreck Cannons/Connecticut Farmhouse/Kahil Gibran Painting | 2008-09-08 | 60 min |
| Season 6 | Episode 10 | Blueprint Special/Monroe Letter/Atocha Spanish Silver | 2008-09-15 | 60 min |
| Season 7 | Episode 1 | PsychoPhone; War Dog Letter; Pancho Villa Watch Fob | 2009-06-22 | 60 min |
| Season 7 | Episode 2 | Manhattan Project Patent/Galleon Shipwreck/Creole Poems | 2009-06-29 | 60 min |
| Season 7 | Episode 3 | St. Valentine's Day Massacre/Booth Letter/Cemetery Alarm | 2009-07-06 | 60 min |
| Season 7 | Episode 4 | Sideshow Babies/Lubin Photos/Navajo Rug | 2009-07-13 | 60 min |
| Season 7 | Episode 5 | Tokyo Rose Recording; Crazy Horse Photo; WWII Diary | 2009-07-20 | 60 min |
| Season 7 | Episode 6 | Amelia Earhart Plane/Fillmore Pardon/Boxcar Home | 2009-07-27 | 60 min |
| Season 7 | Episode 7 | Hindenburg Artifact/John Adams Book/Birthplace of Hip-Hop | 2009-08-10 | 60 min |
| Season 7 | Episode 8 | Mussolini Dagger, Liberia Letter, N.E.A.R. Device | 2009-08-17 | 60 min |
| Season 7 | Episode 9 | WPA Mural Studies/George Washington Miniature/Japanese Balloon Bomb | 2009-08-24 | 60 min |
| Season 7 | Episode 10 | Stalag 17 Portrait/Seadrome/Black Tom Shell | 2009-08-31 | 60 min |
| Season 7 | Episode 11 | Duke Ellington Plates/Scottsboror Boys Stamp/Civil War Bridge | 2009-09-07 | 60 min |
| Season 7 | Episode 12 | Shipwreck Cannons/Connecticut Farmhouse/Kahlil Gibran Painting | 2009-09-14 | 60 min |
| Season 8 | Episode 1 | Space Boot; Satelloon; Moon Museum | 2010-06-21 | 60 min |
| Season 8 | Episode 2 | Iwo Jima Map, Copperhead Cane, Theremin | 2010-06-28 | 60 min |
| Season 8 | Episode 3 | Lauste Film Clip; Baker's Gold; Transatlantic Cable | 2010-07-05 | 60 min |
| Season 8 | Episode 4 | Barton Letter; Andrew Jackson's Mouth; Spybook | 2010-07-12 | 60 min |
| Season 8 | Episode 5 | Cromwell Dixon; Bartlett Sketchbook; Duke Ellington Plates | 2010-07-19 | 60 min |
| Season 8 | Episode 6 | Korean War Letter, Diana, Lookout Mt. Painting | 2010-07-26 | 60 min |
| Season 8 | Episode 7 | St.Valentine's Day Massacre; G. Washington Miniature; Stalag 17 Portrait | 2010-08-09 | 60 min |
| Season 8 | Episode 8 | Hot Town Poster, Face Jug, Lost City of Gold | 2010-08-16 | 60 min |
| Season 8 | Episode 9 | Jackie Robinson All-Stars, Modoc Basket, Special Agent Five | 2010-08-23 | 60 min |
| Season 8 | Episode 10 | WB Cartoons; Galvez Papers; Mussolini's Dagger | 2010-08-30 | 60 min |
| Season 8 | Episode 11 | Chicago Clock; Universal Friends; War Dogs | 2010-09-06 | 60 min |
| Season 9 | Episode 1 | Yakima Canutt's Saddle; The Ni'ihau Incident; Civil War Cannon | 2011-06-21 | 60 min |
| Season 9 | Episode 2 | Spanish Civil War Eulogy; World War II Leaflets; Tiffany Windows | 2011-06-28 | 60 min |
| Season 9 | Episode 3 | Siberian Bullet; John Brown Pike; Ronald McDonald Costume | 2011-07-05 | 60 min |
| Season 9 | Episode 4 | African American Comic Book; Lindbergh-Sikorsky Fabric; Civil War Letters | 2011-07-12 | 60 min |
| Season 9 | Episode 5 | Clara Barton Letter; Teddy Roosevelt War Club; Drone Propeller | 2011-07-19 | 60 min |
| Season 9 | Episode 6 | Baker's Gold; Kittery Telescope; Japanese Carved Cane | 2011-07-26 | 60 min |
| Season 9 | Episode 7 | Andrew Jackson's Mouth Modoc Basket Hot Town Poster | 2011-08-23 | 60 min |
| Season 9 | Episode 8 | Drug Smuggling Doll, Florida Map, Marion Carpenter Camera | 2011-08-30 | 60 min |
| Season 9 | Episode 9 | 1775 Almanac, Exercise Records, Moon Museum | 2011-09-06 | 60 min |
| Season 9 | Episode 10 | Leopold Medal, Suffrage Pennant, WB Cartoons | 2011-09-20 | 60 min |
| Season 9 | Episode 11 | Continental Club Card, Saint Valentine's Day Massacre, Society Circus Program | 2011-09-27 | 60 min |
| Season 9 | Episode 12 | Ince Ledger; Harlem Heirs; Chandler Tintype | 2011-10-11 | 60 min |
| Season 10 | Episode 1 | Bob Dylan Guitar; Beatles Autographs; Frank Zappa Collage | 2012-07-17 | 60 min |
| Season 10 | Episode 2 | Civil War-Era Pistols; KKK Records; Motown Amp | 2012-07-24 | 60 min |
| Season 10 | Episode 3 | Book of Rogues; Empire State Crash; Forbidden Pinup | 2012-07-24 | 60 min |
| Season 10 | Episode 4 | Bird of War; Lincoln Oath; War Spoils of a Peace Chief | 2012-07-31 | 60 min |
| Season 10 | Episode 5 | Titanic Picture Frame; Woolworth Signs; Nazi Spy Toys | 2012-08-07 | 60 min |
| Season 10 | Episode 6 | Vietnam Diary; Bootlegger's Notebook; Hollywood Ledger | 2012-10-02 | 60 min |
| Season 10 | Episode 7 | Colored Heroes, Valley Forge Map and a Transistor Radio | 2012-10-09 | 60 min |
| Season 10 | Episode 8 | Bill of Sale, Cobb Powder Horn and the Star Spangled Banner | 2013-01-08 | 60 min |
| Season 10 | Episode 9 | Mysteries from the Wild West | 2013-04-02 | 60 min |
| Season 10 | Episode 10 | 3-D Cuban Missile Crisis | 2013-08-06 | 60 min |
| Season 11 | Episode 1 | Civil War Sabotage? | 2014-07-01 | 60 min |
| Season 11 | Episode 2 | The Disappearance of Glenn Miller | 2014-07-08 | 60 min |
| Season 11 | Episode 3 | Texas Servant Girl Murders | 2014-07-15 | 60 min |
| Season 11 | Episode 4 | Who Killed Jimmy Hoffa? | 2014-07-22 | 60 min |
