Season
Episode
- Episode 1: 3D Cuban Missile Crisis; Amos 'n Andy Record; Women's Suffrage Painting
- Episode 2: Continental Currency; Short-Snorter; Liberty Bell Pin
- Episode 3: GAR Photograph; Jefferson Pledge; Dempsey Fight Bell
- Episode 4: Atocha Spanish Silver; Ernie Pyle's Typewriter; Lucy Parsons Book
- Episode 5: Great Mexican War Posters; Muhlenberg Robe; Nora Holt Autograph Book
- Episode 6: NC-4: First Across the Atlantic; Howard Hughes Crash; Civil War Balloon
- Episode 7: Grace Kelly Car; Harley-Davidson Motorcycle; Civil War POW Photos
- Episode 8: Coca-Cola Trade Card; Lawrence Strike; Vicksburg Map
- Episode 9: Red Cloud Letter; '32 Ford Roadster; Cast Iron Eagle
- Episode 10: Lincoln Letter; Quaker Map; U.S.S. Indianapolis
- Episode 11: Bill Pickett Saddle; Hitler Films; McKinley Casket Flag
- Episode 12: USS Thresher; Pete Gray Cartoon; Manhattan Project Letter
History Detectives Season 5 Great Mexican War Posters; Muhlenberg Robe; Nora Holt Autograph Book
A group of researchers help people to find answers to various historical questions they have, usually centering around a family heirloom, an old house or other historic object or structure. It devotes itself "to exploring the complexities of historical mysteries, searching out the facts, myths and conundrums that connect local folklore, family legends and interesting objects."
