Lovejoy makes an exhibition of his 'sixth sense' for antiques on a television programme. Later, working on a house clearance, he overlooks an important item and starts to think he may be abusing and losing his talent. After he gets a letter, Lovejoy goes to see another 'divvie' who has lost the magic touch.
Jamie, an old friend of Lovejoy's, turns up on his doorstep needing help with an urgent problem. He can't afford to retrieve a wonderful painting from a pawnbroker, and there are only a few hours to go. Lovejoy agrees to help Jamie raise the cash - but Jamie's estranged wife is also on the warpath...
Jim Leonard (Lovejoy's antiques mentor) resurfaces, wanting Lovejoy's help with a harmless little scam to catch out a famous dealer. The plot centres on a fake painting by Klimt... Eric plays the role of a rich gentleman farmer, Tinker falls heavily for Jim's wife, and Jane is also drawn into the scheme, but Lovejoy finds out just too late that he too is a victim.
In the latest of a series of antique shop 'ram-raids', a table Lovejoy has left with another dealer is smashed, and he uncovers a plan to steal a friend's silver. Meanwhile, Jane befriends a young man while doing some charitable work on behalf of the local hospital, and Charlie Gimbert is asked to find a rather special clock for a customer.
A family struggling to pay death duties needs Lovejoy's help to raise the wind. Meanwhile, Beau Whittaker, working in a local parish church, finds a valuable old flag dating from the American War of Independence hidden behind a monument. A fierce battle quickly breaks out over the question of who is now the flag's true owner.
Charlie Gimbert returns home from overseas, popping up again in a new and unlikely role as manager to Murray McNally, a famous but disgraced snooker player. Murray wants Lovejoy to find him the billiards table which belonged to Mary Queen of Scots, and it seems that money is no object. A visit to Fotheringhay Castle leads on to a descendant of Mary's jailer, and then to an exhibition snooker match starring the real world snooker champion, Dennis Taylor.
Lovejoy is evicted from his rented cottage, as Freddy the Phone, his landlord (also known as Frederick Arthur Haig Montgomery Wavell Reeve) owes back taxes on it. So Lovejoy takes to the road and acquires a commode said to have belonged to the French Emperor Napoleon Bonaparte... and the next thing is to hunt down a continental expert to authenticate it. Did 'Boney' really sit here?