A father and son bounty hunting team are suing the FBI because they claim they tipped them off to the potential whereabouts of a mysterious cache of lost gold, and they dug it up and took it without giving them a penny of the profits.
Let's start where all good stories start, with the mystery.
You see, for centuries people have speculated as to the location of a stash of gold worth an estimated $520 million (£374 million) that was allegedly lost during the American Civil War.
During the Battle of Gettysburg, a key date in American history, the gold was thought to have been lost or stolen whilst it was on the way to the US mint in Philadelphia via horse and cart.
Obviously, it never made it there.
Pretty much since then, bounty hunters have searched for it, spurred on by the mystery the missing gold.
Now, it seems as if the FBI has joined the hunt for it, and - if one search team is to be believed - they haven't exactly played fair.
It's worth pointing out at this stage that the FBI claim they never found anything, but we do know that they conducted a secret overnight dig at a site near to where some thought the gold to be.
The FBI carried out this dig about 200 kilometres from Pittsburgh, but Dennis and Kem Parada, operators of bounty hunting company Finders Keepers, say that they tipped them off to the location.
They claim their metal detectors started pinging around a patch of land in 2018, and they contacted the FBI in the hope that they could secure a finder's fee for their efforts.
However, they're now suing to get access to 2,400 pages of documents to find out about the secretive dig that the bureau carried out.
According to their lawyer William Cluck, the FBI told them that their probe suggested a 'large metallic mass' that could have potentially been gold on the site they'd searched.
But, the pair went back to Dents Run - the name of the site - after the FBI dig and found their detectors stayed silent.
Of course, they want to know the full details of what the FBI found.
Speaking to ABC News, Cluck said: "Everything pinpointed gold at the exact same location. It's flabbergasting that they say they didn't find anything.
"They had 50 agents there. We have witnesses that they were there all night with armoured cars."
An FBI spokesperson said that nothing was ever discovered and the bureau 'unequivocally rejects any claims or speculation to the contrary'.
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