In the sixth film in the series, in February 1916, high school student Indy's plan of taking his girlfriend Nancy is sidetracked when a mysterious break-in, the theft of an electric motor, and rumors of German spies result in a mystery that only young Indy and Nancy can unravel. Indy and his father then head to the southwest to visit family in Albuquerque, where Junior is taken captive by Pancho Villa and his riders.

Mark Kaminsky is kicked out of the FBI for his rough treatment of a suspect. He winds up as the sheriff of a small town in North Carolina. FBI Chief Harry Shannon, whose son has been killed by a mobster named Patrovina, enlists Kaminsky in a personal vendetta with a promise of reinstatement into the FBI if Patrovina is taken down. To accomplish this, he must go undercover and join Patrovina's gang.

The adventures of the eponymous Lovejoy, a likeable but roguish antiques dealer based in East Anglia. Within the trade, he has a reputation as a “divvie”, a person with an almost supernatural powers for recognising exceptional items as well as distinguishing genuine antique from clever fakes or forgeries.