There are rumours that the AA and the RAC are to be merged. When the men from the local RAC branch are invited to the annual AA dinner dance, it's a recipe for trouble.

A new bypass is about to be opened. The AA men are given the job of 'guarding' the new road before the opening ceremony.

Leonard becomes convinced that Joyce is being unfaithful to him. Joyce learns that Cliff Richard will be passing through the area and she's determined to meet him.

The AA men are told that, in future, they should only salute members when stationary. They are unhappy with the change. Harry keeps forgetting about the new procedure and goes on saluting while he's in motion. He manages to come off his bike, so Leonard tells him to use the AA van while his bike is being repaired. A competition has been organised to arrive at a new AA badge. All of the AA men decide to have a go at producing a winning design. Joyce decides to hold a 'soiree' to show off her new cocktail cabinet. Nobody turns up. The AA van is damaged when a drunken local magistrate runs into it. Harry has to resort to extreme measures to get it repaired before Leonard finds out about the damage.

Joyce is planning to go off with Johnny Lupus for a 'dirty weekend'. Her car breaks down and Johnny starts trying to fix it. Then Mr Bannerman comes along on his AA bike and insists on helping. Johnny has to hide in nearby woods. Their 'weekend of passion' is ruined. Harry stops to help a beautiful French girl who has broken down. He thinks it's love at first sight, but later realises she's just flirting with him. Pettigrew and Munce find a mysterious car parked in a secluded spot off the road. They think the vehicle must be involved in a crime, but eventually discover that it belongs to a couple who've stopped so that they can go for a walk.