| Expedition Unknown Special | Shangri-La Found: Josh continues his epic adventure through the Himalaya Mountains, exploring the region's ancient sky caves in search of the origins of the utopian paradise Shangri-La. (Ep19) | Sat, Jan 12, 9:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Searching for Shangri-La: Josh ascends the Himalaya Mountains of Nepal to investigate the legendary Buddhist utopian paradise known as Shangri-La. (Ep18) | Sat, Jan 12, 12:45 pm | Travel Channel | 55 mins |
| Expedition Unknown Special | Further Off the Rails!: Josh Gates compiles all the best unseen footage, expanded scenes and never-before-televised moments from his season two adventures into one wild and crazy special. (Ep20) | Sat, Jan 12, 11:45 am | Travel Channel | 60 mins |
| Expedition Unknown Special | More Extreme Adventures: Josh interviews his crew about the most thrilling, frightening and fun behind-the-scenes moments of season three. (Ep12) | Thu, Jan 10, 9:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Searching for Shangri-La: Josh ascends the Himalaya Mountains of Nepal to investigate the legendary Buddhist utopian paradise known as Shangri-La. (Ep18) | Sat, Jan 5, 9:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Hitler's Atomic Secrets: Josh travels to Austria to expose the secrets of the Third Reich. During his expedition, he dives into an Alpine lake to locate a lost fortune. (Ep17) | Sat, Jan 5, 11:45 am | Travel Channel | 60 mins |
| Expedition Unknown Special | Greatest Treasure Hunts: In this one-hour special, Josh counts down his ten greatest treasure hunts and shares expanded scenes from his wildest expeditions. (Ep11) | Sun, Dec 30, 6:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Greatest Treasure Hunts: In this one-hour special, Josh counts down his ten greatest treasure hunts and shares expanded scenes from his wildest expeditions. (Ep11) | Wed, Dec 26, 9:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Resurrecting the Woolly Mammoth: Josh treks north of the Arctic Circle to search for the DNA of the long-extinct woolly mammoth. | Sat, Dec 15, 11:45 am | Travel Channel | 60 mins |
| Expedition Unknown Special | Hitler's Atomic Secrets: Josh travels to Austria to expose the secrets of the Third Reich. During his expedition, he dives into an Alpine lake to locate a lost fortune. (Ep17) | Sat, Jun 2, 11:50 am | Travel Channel | 50 mins |
| Expedition Unknown Special | Further Off the Rails!: Josh Gates compiles all the best unseen footage, expanded scenes and never-before-televised moments from his season two adventures into one wild and crazy special. (Ep20) | Sat, May 19, 11:50 am | Travel Channel | 55 mins |
| Expedition Unknown Special | Hitler's Atomic Secrets: Josh travels to Austria to expose the secrets of the Third Reich. During his expedition, he dives into an Alpine lake to locate a lost fortune. (Ep17) | Sat, May 5, 12:45 pm | Travel Channel | 50 mins |
| Expedition Unknown Special | Nazi Gold Train: Josh travels to Europe to expose the last secrets of the Nazi empire. He searches for a train filled with stolen gold and hunts for a lost fortune at the bottom of a lake. (Ep16) | Sat, May 5, 11:50 am | Travel Channel | 55 mins |
| Expedition Unknown Special | Hitler's Atomic Secrets: Josh travels to Austria to expose the secrets of the Third Reich. During his expedition, he dives into an Alpine lake to locate a lost fortune. (Ep17) | Sat, Apr 28, 11:40 am | Travel Channel | 55 mins |
| Expedition Unknown Special | Nazi Gold Train: Josh travels to Europe to expose the last secrets of the Nazi empire. He searches for a train filled with stolen gold and hunts for a lost fortune at the bottom of a lake. (Ep16) | Sat, Apr 21, 11:40 am | Travel Channel | 55 mins |
| Expedition Unknown Special | Resurrecting the Woolly Mammoth: Josh treks north of the Arctic Circle to search for the DNA of the long-extinct woolly mammoth. | Sat, Feb 3, 12:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Nazi Gold Train: Josh travels to Europe to expose the last secrets of the Nazi empire. He searches for a train filled with stolen gold and hunts for a lost fortune at the bottom of a lake. (Ep16) | Sun, Dec 17, 1:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Resurrecting the Woolly Mammoth: Josh treks north of the Arctic Circle to search for the DNA of the long-extinct woolly mammoth. | Sun, Dec 17, 12:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Nazi Gold Train: Josh travels to Europe to expose the last secrets of the Nazi empire. He searches for a train filled with stolen gold and hunts for a lost fortune at the bottom of a lake. (Ep16) | Sat, Nov 25, 12:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Nazi Gold Train: Josh travels to Europe to expose the last secrets of the Nazi empire. He searches for a train filled with stolen gold and hunts for a lost fortune at the bottom of a lake. (Ep16) | Sat, Nov 18, 9:00 pm | Travel Channel | 60 mins |
| New: Expedition Unknown Special | Nazi Gold Train: Josh travels to Europe to expose the last secrets of the Nazi empire. He searches for a train filled with stolen gold and hunts for a lost fortune at the bottom of a lake. (Ep16) | Sat, Nov 18, 1:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Hitler's Atomic Secrets: Josh travels to Austria to expose the secrets of the Third Reich. During his expedition, he dives into an Alpine lake to locate a lost fortune. (Ep17) | Sat, Nov 18, 12:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Hitler's Atomic Secrets: Josh travels to Austria to expose the secrets of the Third Reich. During his expedition, he dives into an Alpine lake to locate a lost fortune. (Ep17) | Sat, Nov 11, 9:00 pm | Travel Channel | 60 mins |
| New: Expedition Unknown Special | Hitler's Atomic Secrets: Josh travels to Austria to expose the secrets of the Third Reich. During his expedition, he dives into an Alpine lake to locate a lost fortune. (Ep17) | Sat, Nov 11, 1:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Resurrecting the Woolly Mammoth: Josh treks north of the Arctic Circle to search for the DNA of the long-extinct woolly mammoth. | Sat, Sept 30, 12:00 pm | Travel Channel | 60 mins |
| New: Expedition Unknown Special | Resurrecting the Woolly Mammoth: Josh treks north of the Arctic Circle to search for the DNA of the long-extinct woolly mammoth. | Sat, Sept 23, 9:00 pm | Travel Channel | 60 mins |
| New: Expedition Unknown Special | Shangri-La Found: Josh continues his epic adventure through the Himalaya Mountains, exploring the region's ancient sky caves in search of the origins of the utopian paradise Shangri-La. (Ep19) | Sat, Aug 19, 9:00 pm | Travel Channel | 60 mins |
| New: Expedition Unknown Special | Searching for Shangri-La: Josh ascends the Himalaya Mountains of Nepal to investigate the legendary Buddhist utopian paradise known as Shangri-La. (Ep18) | Sat, Aug 12, 9:00 pm | Travel Channel | 60 mins |
| New: Expedition Unknown Special | Global Game Show: Greek Odyssey: This special episode features behind-the-scenes extras, expanded scenes and highlights from Josh's investigation into the lost civilisation of the Minoans. (Ep13) | Sat, Aug 5, 9:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | More Extreme Adventures: Josh interviews his crew about the most thrilling, frightening and fun behind-the-scenes moments of season three. (Ep12) | Sat, Mar 18, 9:00 pm | Travel Channel | 60 mins |
| New: Expedition Unknown Special | More Extreme Adventures: Josh interviews his crew about the most thrilling, frightening and fun behind-the-scenes moments of season three. (Ep12) | Sat, Mar 18, 12:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Greatest Treasure Hunts: In this one-hour special, Josh counts down his ten greatest treasure hunts and shares expanded scenes from his wildest expeditions. (Ep11) | Sat, Mar 11, 9:00 pm | Travel Channel | 60 mins |
| New: Expedition Unknown Special | Greatest Treasure Hunts: In this one-hour special, Josh counts down his ten greatest treasure hunts and shares expanded scenes from his wildest expeditions. (Ep11) | Sat, Mar 11, 12:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Further Off the Rails!: Josh Gates compiles all the best unseen footage, expanded scenes and never-before-televised moments from his season two adventures into one wild and crazy special. (Ep20) | Sat, Mar 4, 9:00 pm | Travel Channel | 60 mins |
| Expedition Unknown Special | Further Off the Rails!: Josh Gates compiles all the best unseen footage, expanded scenes and never-before-televised moments from his season two adventures into one wild and crazy special. (Ep20) | Sat, Mar 4, 12:00 pm | Travel Channel | 60 mins |