When a local man "takes advantage" of Nora Batty, Compo challenges him to a duel.
When Wesley starts acting very weird about some new invention he has in his shed, the trio tries to find out what kind of invention is he working on.
The trio encounters a man, and his inflatable doll, which creates some natural curiosity among the three elders.
The trio comes across a very weird scientist and his unusual new invention. Meanwhile Wesley's new suit causes some trouble during the ladies outing.
When Compo reaches a crucial point in his "relationship" with Nora Batty, and realises he's not going anywhere with her, he decides to go looking for his old "girlfriends" from his school days, with whom he expects to get a more "personal" relationship. It turns out he wasn't really ready for some of the surprises he encounters after all these years... people DO change sometimes.
When word comes around that there's a treasure buried in town, it's up to the trio to go and find it. To do so they need the help of the one man that has the *only* map, Lieutenant Commander Willoughby (Royal Navy, retired). It's up to Foggy to pay the 30 pounds the map's worth. The problem is... how many maps were sold in the first place? Foggy vows not to be near one cash dispenser again...
When Pearl starts getting suspicious of Howard's affair once again, she locks his bicycle. It's now up to the trio to come up with a secret bicycle for Howard, which turns out to be a little more secret than they'd have thought.
Marina leaves Howard for good this time. He suspects that she has been seeing another man, and asks for the help of the trio to get her back. Foggy feels that what Howard needs is a bit of "the glamour of the uniform". Auntie Wainwright's new established costume department might be just the perfect place to find it.
Foggy thinks the trio should be more in touch with the wilderness, so he thinks of the ideal plan, counting with Auntie Wainwright's bicycle bonanza, a map, and a basket of sandwiches.
This time's for real! Howard's had enough of Pearl and decides to leave home forever. It's up to the trio to get the couple back together, when it's visible that Howard misses Pearl more than he thought he would.
