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

Billy, Mark and the Martins cross the border once again to compete for unclaimed freight and baggage in Toronto.

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 head to the Midwest to bid on bags, antiques and sports memorabilia at Indianapolis's annual auction. The Martins argue over buying a vintage music player, and Mark has his eye on a rare boxing collectible.

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.

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.

The Baggage Battles team is in Florida at the world’s largest airport auction. Mark has his sights set on a compound bow, while Laurence and Sally target luxury luggage. Billy goes head-to-head with his fellow buyers for a bronze bust.

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.

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.

The auction specialists fly across the Atlantic to bid on lost bags in London. Sally convinces Laurence to bid on an 18-carat gold gypsy ring, while Mark and Billy both compete to win some interesting luggage.

The buyers are in Los Angeles at the country’s biggest police auction. Mark gambles on gold while Billy and the Martins compete for a few antique weapons, one of them signed by a movie star.

The Baggage Battles crew travels all the way to Glasgow, Scotland, to attend a police auction. Billy and the Martins battle over a vintage military snuff box made out of a ram's horn, while Mark hopes to profit from some Scottish farm tools.

The auction specialists return to New York for the PropertyRoom.com Mass Transit Lost Property auction.

The auction specialists head to North Carolina to bid on some unusual items, including a vintage car and coffin, at a freight auction.

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.

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.

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

The group visits Canada's largest police auction in Vancouver, BC.

The buyers are in Miami to bid on world-class luggage. Mark aggressively bids on bags of jewelry hoping to strike gold, while Billy eyes up the heaviest bag at the auction. Laurence & Sally are surprised to find antique books.

The buyers head to New Jersey to bid on lucrative cargo at a government-run US Customs auction. Mark takes a gamble on a shipment of items from US military in Kuwait, while Billy and the Martins have their eye on vintage bicycles.

Fifty years worth of Americana is auctioned off in Louisiana.