Oh No, It's Selwyn Froggitt - Season 4 (1978)

Mervyn hasn't paid the council tax and they won't collect the garbage. Selwyn decides to make a game for the campers. A trolley race to the dump. Only problem is the signs get mixed up and they are lost at a manor house. Selwyn gets lost in a tour and the campers are ordered to take the garbage back.

Mike the postman gets Selwyn to put a bet on the horses for him. When Mike and Selwyn go to collect, the horse has been eliminated, causing Mike to lose £600 on the winnings. The campers are expecting a Hawaiian night, so Selwyn has left the campers to make skirts out of straw, lei's out of toilet paper, and blackening out of burnt corks. When Selwyn gets back from the Bookie's, the camp is on fire.

This time the campers are angry that there is no swimming pool as advertised in the brochure. Froggitt decides on a treasure hunt by guiding them into the area where the pool needs to be dug. One of the campers finds an un-exploded bomb and everyone runs except Selwyn. He builds a makeshift crane to pull it out of the ground.

Series Finale. Mervyn gets a threatening call from the bookie and runs away. Two heavies are waiting in his office later when Selwyn comes in. Mervyn has run off without locking up the camp for the season, so Selwyn gets Mr Price the owner out of the hospital. Mervyn comes back, and his uncle is angry. Selwyn packs up, and sadly goes back to his mum in Scarsdale.