Season 4 (2008)
| Ep# | Original Airdate | Episode Title | Investigation | |
| 401 | March 5, 2008 | Fort Mifflin | Philadelphia, PA – Fort Mifflin | |
| 402 | March 12, 2008 | Two to Tango | Mount Holly, NJ – Burlington County Prison and Norwich, CT – private home | |
| 403 | March 19, 2008 | Words From Beyond | Belchertown, MA – Clapp Memorial Library and North Attleborough, MA – private home | |
| 404 | March 26, 2008 | The Fear Cage | Cashtown, PA – The Cashtown Inn | |
| 405 | April 2, 2008 | Ghostly Bounty Hunter | Norton, MA – private home and Trinway, OH – Prospect Place | |
| 406 | April 9, 2008 | Wright-Patterson Air Force Base | Dayton, OH – Arnold House and Building #70 at Wright-Patterson Air Force Base | |
| 407 | April 16, 2008 | Ghostly Conversation | North Providence, RI – Ruffstone Tavern and Bretton Woods, NH – Mount Washington Hotel | |
| 408 | April 23, 2008 | Spirits of the Old West | Goldfield, NV – The Goldfield Hotel and Virginia City, NV – Old Washoe Club | |
| 409 | April 30, 2008 | Haunted Asylum | Weston, WV – Trans-Allegheny Lunatic Asylum | |
| 410 | May 28, 2008 | House of Spirits | New Haven, CT – private home and Manchester, NH – Palace Theater | |
| 411 | June 4, 2008 | Widow's Watch | Yarmouth Port, MA – Colonial House Inn and Moss Beach, CA – Moss Beach Distillery. | |
| 412 | June 11, 2008 | Garden State Ghosts | Clinton, NJ – The Red Mill and Perth Amboy, NJ – Proprietary House | |
| 413 | June 18, 2008 | Fort Delaware | Pea Patch Island, DE – Fort Delaware | |
| 414 | September 3, 2008 | Iron Island | Buffalo, NY – Iron Island Museum | |
| 415 | September 10, 2008 | So She Married an Axe Murderer | Pawtucket, RI – Slater Mill and Simsbury, CT – Pettibone Tavern | |
| 416 | September 17, 2008 | The Boy in the Brothel | North Kingstown, RI – Hoof Fin Feathers Carriage Inn and Groton, CT – private home | |
| 417 | September 24, 2008 | Speaking With the Dead | Buffalo, NY – Buffalo Central Terminal | |
| 418 | October 1, 2008 | Ghosts of the Sunshine State | Ocala, FL – Seven Sisters Inn and St. Petersburg, FL – Renaissance Vinoy Resort | |
| 419 | October 8, 2008 | Oak Alley Plantation | Vacherie, LA – Oak Alley Plantation | |
| 420 | October 15, 2008 | Bottled Spirits | Dayville, CT – private home and Appleton, NY – The Winery at Marjim Manor | |
| 421 | October 22, 2008 | Hometown Haunts | Springfield, MA – Theodore's & Smith's (blues club and pool hall), and Leominster, MA – Leblanc House | |
| 422 | October 29, 2008 | USS Hornet | Alameda, CA – USS Hornet Museum (with guest Colin Ferguson, star of Sci-Fi's Eureka TV series). | |
| 423 | November 5, 2008 | Ghost Hunters Live Roundtable Discussion (Special) | Review of the Ghost Hunters Live investigation of Fort Delaware and Topsfield, MA – McKeeham House. | |
| 424 | November 12, 2008 | All Access | Josh Gates from Destination Truth sits down with the TAPS team to discuss their most memorable cases. | |
| 425 | November 19, 2008 | Recycled Souls | Clovis, CA – Clovis Avenue Sanitarium and Essex, MA – The Windward Grille | |
| 426 | December 3, 2008 | Spirits on the Water | San Diego, CA – Maritime Museum of San Diego ships Star of India and Berkeley | |
| 427 | December 10, 2008 | Portsmouth Harbor Lighthouse | New Castle, NH – Portsmouth Harbor Light | |
Read more about this topic: List Of Ghost Hunters Episodes
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