Auction house Parke-Mason sells the Davenport collection, launching Graham Connor's career; Sam Brukner's collection sparks competition between Parke-Mason and a rival auction house; a smuggler from Graham's days in Iraq makes trouble.

A rock memorabilia auction is jeopardised when a Pete Townshend artefact is stolen; smugglers from Graham's past lure him back into the smuggling business; Roxanna Whitman signs a priceless art collection, only to find out it is not what it seems.

A couple discovers millions in gold coins buried in their yard; Graham joins Brukner on a weekend getaway in an effort to land his account; Uzay and Demir arrange for a Russian mob boss to buy one of the antiquities, setting up Graham in the process.

Napoleon memorabilia brings an assortment of bidders; to increase the Swift collection's value, Roxanna enlists the aid of a forger; Graham steps up his game in order to land the Brukner account; Graham, Uzay and Demir meet with a Russian mob boss.

An auction from Antarctic explorer Robert Falcon Scott's expedition; Graham brings his girlfriend home on the anniversary of his father's death; Roxanna finds herself the target of blackmail.

A new auction includes astronaut Sally Ride's spacesuit;. the FBI identify Hassan, forcing Graham to scramble on an antiquities shipment; Roxanna investigates Richard Swift; Belinda finds herself working with Uzay.