| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S20E01 | Lindbergh Kidnapping |
May 31, 2018
Travel Channel
|
60 | |
| S20E02 | Lunar Fender Bender, Opera Angels and Billiard Balls |
June 7, 2018
Travel Channel
|
60 | |
| S20E03 | Cold War Secrets |
June 14, 2018
Travel Channel
|
60 | |
| S20E04 | Presidential Cheese, Spying Space Shuttle and Liberty in the Lake |
June 21, 2018
Travel Channel
|
60 | |
| S20E05 | Cleopatra |
June 28, 2018
Travel Channel
|
60 | |
| S20E06 | Hollywood Dog, Legend of Zorro and Up in Arms |
July 5, 2018
Travel Channel
|
60 | |
| S20E07 | Space Race |
July 12, 2018
Travel Channel
|
60 | |
| S20E08 | Jack the Ripper, Wooden Money and Deadly Decor |
July 12, 2018
Travel Channel
|
60 | |
| S20E09 | China Clipper, Phantom Island and Dueling Dandy |
August 1, 2018
Travel Channel
|
60 | |
| S20E10 | Ghost Ship, Bobsledding and Handel's Heartstopper |
August 15, 2018
Travel Channel
|
60 | |
| S20E11 | Missing Toe Murderer, Air Locked Out and Trenches Terror |
August 22, 2018
Travel Channel
|
60 | |
| S20E12 | Unbelievable Inventions |
August 30, 2018
Travel Channel
|
60 | |
| S20E13 |
Terror Ship, Wicked Stepmother and Message in a Bottle
season finale
|
August 29, 2018
Travel Channel
|
60 | |
| S20E14 | First Time Explorers |
September 5, 2018
Travel Channel
|
60 | |
| S20E15 | Lord Lucan, World's Greatest Drag Racer and Lighthouse Lifesaver |
September 5, 2018
Travel Channel
|
60 | |
| S20E16 | Frightening Foo Fighters, Bird's Eye Spy and Coral Castle Mystery |
September 12, 2018
Travel Channel
|
60 | |
| S20E17 | Secrets of the Deep |
September 12, 2018
Travel Channel
|
60 | |
| S20E18 | Smoking Guns |
October 10, 2018
Travel Channel
|
60 | |
| S20E19 | Skyscraper Seance, Frozen Woman and Black Widow |
November 7, 2018
Travel Channel
|
60 |
No artwork of this type.
No artwork of this type.
No artwork of this type.