Greg Veitch is on a visit from Australia, looking for antiques, but especially what he calls 'my Eureka' - the thing he must have. At Sir Max Spence's house, Greg sees a magnificent bronze from Benin, in Africa, and wants it, but he can't get an export license. Then the bronze goes missing, and Lovejoy comes under suspicion - so he feels he must get to the bottom of what's going on.

Lovejoy is asked to value an ancient Chinese terra-cotta figure of a pig. Then he falls off a bicycle and breaks his leg, landing him in hospital. The pig's owners, curiously, are doing their best to have it under-valued. Meanwhile, Eric needs to sell his ancient motorbike and comes up with the story that it once belonged to Lawrence of Arabia. And pigs might fly...

Jane decides to sell an Anatolian rug. When it comes up for auction, an old lady at the sale, Harriet Fisher, buys a Berber rug for her dog, but a young Arab who also wanted it promptly steals it from Harriet. Lovejoy is curious and decides to investigate... Meanwhile, Alexander and Jane are quarrelling badly, and they decide to split up.

Mr Kashimoto is trying without success to join an exclusive local golf club. The club asks Lovejoy to value its finest silver trophy, but he recognizes it as a fake. Eric then accidentally shoots a hole in Lovejoy's ceiling, and in the loft above a very similar trophy is discovered... Lovejoy sets out to solve the mystery.

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?

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.

On a visit to Frankie's scrap yard Lovejoy acquires an ancient cannon. He takes a trip to the Tower of London to see what he can find out about it, and while he's away an ordnance expert going under the name of Major Turpin tries to steal the cannon from under Eric's nose.

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...

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.

Lovejoy has been left to look after Felsham Hall until it has been sold, and he uses the house as a furniture showroom. He thus crosses swords with the beautiful Charlotte Cavendish, who is the auctioneer selling the Hall. At the auction, Charlie Gimbert buys the property, and Lovejoy agrees with him to rent the stables for Lovejoy Antiques.