Having hired Eric Catchpole as an apprentice, Lovejoy sets out to unravel the meaning of a Japanese firefly cage.As Lovejoy and Eric are in hot pursuit (on Eric's motorbike) of a lovely lady with something they want, they hit a pool of water in the road and give a drenching to Jane (Lady Felsham), who is busy unveiling a plaque. When, later, Lovejoy rings the doorbell at Felsham Hall, complex chemistry begins, and Jane is soon showing Lovejoy around her attic...

Lovejoy sets out to help a young woman to trace a pair of Meissen figures which she sold to raise cash for a drug habit. When he comes across evidence of a double-cross by Charlie Gimbert, he decides to get even.

A robbery at the local museum seems to be connected with the death of a local forger, and Lovejoy goes on the trail of a hoard of Roman coins in the Isle of Man. Two Americans are also after the coins.

The wife and brother of a man killed with a fabulous pair of Regency duelling pistols engage Lovejoy to find them and thus bring about the downfall of the murderer. In the process, Lovejoy puts Jane's life at risk and challenges Dr La Grange to a duel.

Lovejoy travels to Venice to investigate the murder of a friend. The dead friend had bought a painting Lovejoy believed was a fake. In Venice, he is drawn into an ambitious art swindle, and identical twins Caterina and Lavinia are behind the scam.

In Venice, Lovejoy gets a job working for Caterina and Lavinia, with a view to busting their scam, and meets a Scottish forger called 'Lucky' Luciano. Lovejoy and Lucky together unravel the mystery of the Island of Rats.

At the beginning of series 2, Lovejoy has just come out of prison after serving a sentence for theft. He believes he was set up and returns to Suffolk hoping to find the villain and get even.

Some old sketches put Lovejoy and Jane on a trail which takes them up to Scotland, where they uncover a plot by another antiques dealer to con one of Jane's friends. At home, Eric is involved with a young woman with some unsavory relations, but she also has an antique mirror to sell. Lovejoy and Jane are moving closer to romance... but who is the girl Lovejoy keeps seeing in the woods?

Lovejoy is likely to be on his own for Christmas. However, a violent attack on an old Czech fighter pilot leads Lovejoy and Eric to Prague on a treasure hunt. Jane, who was on holiday with friends in Austria, joins Lovejoy in Prague to help solve a mystery of missing diamonds.Tinker is left to mind the shop and make preparations for Christmas.

Lovejoy meets distant cousins from America, who are visiting England. As well as a female ghost, old Lord Wakering has treasures which once belonged to Sir Walter Raleigh, and both Lovejoy and Mary-John Lovejoy, his American cousin, want them. Some of Lord Wakering's things are stolen, and Lovejoy travels in hot pursuit to the Carolinas, where he is not made welcome. Charlotte has to fly over to get him out of trouble.

In the last episode of Lovejoy, our hero gears himself up to marry Charlotte, and his old life begins to splinter. Jane Felsham returns with a splash, and without Alexander in tow - will Lovejoy have to choose between her and Charlotte?