Laurence and Sally travel to Billy and Mark's backyard of NY, and they all compete for a valuable international freight.

Billy, Mark and the Martins head to the Boston Estates Auction, conducted by White's Auctions, to gamble on genuine historical items. However, not everything sold at this auction is authentic.

Every year in Atlanta over half a billion trucks carry more than 400 million tons of freight through this major southern city. Billy, Mark and the Martins head down to the freight capitol of the East Coast to compete for prized cargo.

Nicknamed "The Gate City," Greensboro, NC, is a major hub for import and export. Billy, Mark & the Martins head to Greensboro, hoping to turn a profit on some of this unclaimed southern treasure.

London hosts 14 million international visitors each year, making it Europe's most visited city. London is home to 6 major airports, including Stansted Airport. In St. Albans, a town 22 miles north of London, Billy, Mark and the Martins compete for the lost and unclaimed bags of the rich.

Dublin has been Ireland's transportation hub for almost 1,000 years. The Garda, Ireland's police force, is headquartered in Dublin, with over 14,000 officers. The Garda regulate all lost property turned in by citizens. If no one claims this property for a year and a day, it's put up for public auction. The auction specialists visit Dublin to bid on lost historical Irish items.

The auction specialists are in Greensboro, NC, an essential shipping hub, to bid on lost freight. Mark and Billy battle over vintage toys, and the Martins take advantage when other buyers mistake a lucrative item for a cheap sewing machine.

The auction specialists head to Phoenix, AZ, for an auction with the Sierra Auction Management team.

Vehicles of various models and prices are bid on when the Martins, Mark and Billy visit the Tampa Machinery Auction in Thonotosassa, Fla. Included: A 1976 Corvette gets everyone excited.

The buyers travel to Santa Cruz, Cal., for a biweekly lost-property auction, which features many Americana items, including antique toys, jewelry and vintage signs.

An auction in Toronto finds the Martins bidding on a box, which they hope contains classic movie posters.

Items seized by a sheriff's department are bid on in Shreveport, La. Included: valuable sports memorabilia; rare musical instruments; and high-tech spy equipment.

An item manufactured by daredevil Evel Knievel turns up at an auction in Toronto; and Billy and Laurence battle over vintage Samsonite luggage.

Fifty years worth of Americana is auctioned off in Louisiana.