A mysterious disc found in the Sulphur Fork River brings a surprising outcome. Plus, other finds include weapons buried in a family's backyard, a cryptic coin found on the Lewis and Clark Trail, and two objects that would be of great historical significance if authentic - General Custer's rifle, and a carved clue in the disappearance of a Revolutionary War soldier. Written by Committee Films

While Blue and Mike examine what looks like an ancient axe, Dale inspects an artifact found in a storage locker which may be tied to a brutal practice used on slaves.

The guys meet a man who says he can prove he has a bloodstained pistol that was owned by outlaw Jesse James. Dale visits a farmer who thinks he found proof of aliens in his own backyard.

The guys try to uncover why and how medieval scale armor was abandoned in the Arizona desert.

Blue meets a family who found a death mask that could be evidence of a murder in the mines. Dale meets a man who thinks he has an ancient Egyptian scarab stone inscribed with a secret message.

Dale and Blue examine whether a woman who found a letter hidden behind a picture frame stumbled on a lost piece of Abraham Lincoln correspondence that could be worth up to $1 million dollars.Dale and Blue examine whether a woman who found a letter hidden behind a picture frame stumbled on a lost piece of Abraham Lincoln correspondence that could be worth up to $1 million dollars.