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?

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.