Owner Paul Brown and Gallery 63 team prepare for their next auction, which includes an ancient hand cannon, a gold Faberge pencil, and a player piano; a woman hits the jackpot when she brings in an unwanted painting she inherited.

A three-carat, platinum-band ring catches manager Cindy's eye, but it's a humble bull sack purse that inspires her to hold Gallery 63's first mechanical bull rodeo; the Gallery 63 crew also takes in a vintage dive helmet and a ship's binnacle.

Mike helps out at a turkey and a potato farm, and removes sewage from a water treatment plant.

After their first dig site is exhausted, the Hoffman crew races to open a new cut, but not before a key member of the team quits; massive rocks break Dakota Freds derocker; Parker Schnabel reconsiders his future.

Senior continues to reach out to Mikey, who seeks counselling from Vinnie; PJD reveals its build for Cepheid, a medical technology company, while OCC unveils both a bike and a reverse trike for Beck's Hybrids.