Monday

When Seth needs help in the online department, Les volunteers Ashley - who immediately oversteps by putting a rare Olympic torch from Seth's personal collection up for sale. When the item goes MIA, all hell breaks loose with the store's reputation and a lot of money on the line. Plus, Les gets his hands on some petrified animal anatomy that he may wish he never picked up and helps a tongue tied customer negotiate a sweet deal on a creepy Gothic Hope Chest

The arrival of the mafia to the Kansas River Quay Market area brought with it prostitution, drugs, gambling and eventually a little murder. The boys go fishing for mafia mementos to see who else if anyone is swimming with the fishes.

Brandon and Lori win the big prize.

Mone, Brandon and Lori's new nemesis, arrives on the scene.

Jeff makes an impulse buy. Meanwhile, Daniel ends up with a truckload of shoes that are all the same size.

Jeff takes a gamble in trying to sell some broken pianos, an assortment of pickled peppers, and a collection of ornamental seashells.

Officer Slaughter pulls over a gun-toting cowboy.

A paddleball player has racket tips for an officer.

Determined to uncover a hidden honey hole, the guys are freestyling on their home turf in Iowa. And to keep himself entertained, prankster Frank has a few practical jokes up his sleeve. After the boys spot a rusty toy museum sign, lifetime collector George opens the doors to his heavenly collection. A former church turned personal showcase, the shelves are overflowing with vintage toys and George is in the mood to sell. The bearded charmer works his magic and the guys soon find themselves picking with a local history buff. As a fire marshal, John empties abandoned houses before burning them down! He's filled several outbuildings with salvaged treasures. Mike spots an item so unusual he's willing to take a huge gamble. In Des Moines, auction-addict Roger has a 3,000-square-foot mega-pick that's jam-packed with treasure that he's finally willing to sell.

In Mississippi, Mike and Frank find what turns out to be a priceless, 65-million year-old dinosaur bone. It's appraised by the curator of the Mississippi Museum of Natural Science. Next, they find a 1960's Bella German scooter judged among the best on the market at the time, and an antique audio recording device made from piano wire.

Brawling isn't out of the ordinary at American Jewelry and Loan, but when customers throw down in the parking lot before the doors even open, Les knows it's a bad sign. Inside, it's business as usual - with Seth and Ashley at each other's throats - but will they be able to keep it together and lend a hand when their dad needs them most? Or will their petty squabbling distract them until it's too late? With a shocking ending you won't want to miss - or ever forget.

With Les out of commission, Seth and Ashley run the shop as co-managers, but when Seth's decision to cut back on staff leaves Ashley alone on the floor with one too many crazy customers, it's clear that sharing duties just won't work. Les must decide who he'll leave in control of the store, and it's not going to go over well with everyone. Plus, a sweet vintage thunderbird cruises in - with a wacky owner who might just ruffle some feathers.

Jennifer troubleshoots the biggest load of her career--a Mini Max Airplane--that tests her patience. Marc doesn't have a minute to spare or he'll suffer huge consequences with this high dollar load.

Roy's truck comes to a screeching halt when it breaks down for the last time while Jarrett delivers a $150,000 restored Delorean to a nit-picking customer.

After 2017 Daytona 500 winner Kurt Busch makes a surprise visit to Gas Monkey, Richard strikes a deal to build him a '72 Pantera to race against fellow NASCAR champion Joey Logano.