Bucks County's notorious Doan Gang featured on Discovery's 'Expedition Unknown' tonight

Discovery's "Expedition Unknown" will take its national audience inside one of Bucks County's enduring mysteries, the Mercer Museum and Fonthill Castle announced Wednesday.

The show, starring Josh Gates, will feature the Doan Gang on an episode airing Wednesday night at 9. It also can be streamed on Max.

"Tune in to tonight’s episode of #ExpeditionUnknown on Discovery Channel to see Josh Gates investigate the notorious Doan Gang featuring the Mercer Museum and some of our amazing staff," the post reads on Facebook. "Josh chases the fortune stolen by loyalists to Britain's crown during the American Revolution. Jumping into two investigations of the infamous Doan Gang, Josh helps dig up a cache of plundered coins. Later, a cave search pinpoints the turncoats' hideout."

The Mercer Museum in Doylestown is also taking a new look at the notorious Doan Gang — the band of five Revolutionary War-era brothers and one cousin from Central Bucks County who served as British spies and hardened criminals during the war — through a new exhibit.

The grave marker for Abraham Doan, who was eventually executed in Philadelphia in 1788, serves as the centerpiece of the exhibit, "The Doan Gang: Outlaws of the Revolution."

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The mystery surrounding the exact locations of the Doan Gang gravesites live on to this day. According to the museum, many believed the Doan Gang were buried in unmarked graves in a stretch grass near the Plumstead Friends' cemetery.

Staff writer Damon C. Williams contributed to this report.