Terry Ainsworth is more interested in train spotting than going to school, and he is happy when his father Eddie takes him on a train ride. Little does the boy know that his father, who is fresh out of jail, is planning to steal a lot of fur coats and he wants to check out the railway line for the best spot to do it. It does not matter to him that his wife Molly is working at the company which produces the fur coats. Greengrass is doing some gardening for Mr. and Mrs. Dobson when he finds some old, Roman coins. Convinced there are more where they came from he rents an excavator to do some serious digging for them while the Dobsons are away for a couple of days.

. Ralph Spurling has been burgled and wants Oscar Blaketon to find out which employee at the hotel he was staying at is involved in the burglary. PC Wetherby helped Lesley Ashton in a case back in Northallerton and now she is obsessed with him and turns up in Ashfordly with a suitcase. When he turns her down she accuses him of running her down with his car. Bernie Scripps goes to see Iris Grocott to collect his fee for her husbands funeral and she surprises him by inviting him to dinner and does not take no for an answer. They check in at the same hotel which Blaketon is investigating with the help of Alf Ventress. And staying in the romance department things are really heating up between Nurse Cassidy and Doctor Oakley.