David sees how a man is thrown off a moving train after being assaulted and manages to get him to Dr. Merrick's surgery. When PC Crane stops the train a young man, Thomas Grant, tries to run away, but is apprehended. He claims his innocence saying he was on his way to see his girlfriend, but PC Crane finds out that he has escaped from prison. Vernon Scripps is followed by a donkey, and when he learns that this means luck according to gipsy tradition he decides to open a donkey sanctuary. Lord Ashfordly has decided to auction off some unused family heirlooms and Colin Taylor from Featherstone's auction house in London comes to Ashfordly Hall to assess the value of it. Alf Ventress has been forced to retire from the police, and the most significant change is that now he is not wearing any uniform when he is drinking his tea and eating cookies at the police station.

Lord Ashfordly plays host to a group of ex-offenders, who will be working on the estate under the supervision of Eric Grey as part of a rehabilitation programme. But not all of the young men are that keen on getting rehabilitated and only want to make trouble. For starters they steal Oscar Blaketon's car when he refuses to serve them at the pub. Dorothy Plum is complaining that someone is disturbing her little dog Marigold, but a search of her garden and the road outside turns up nothing. The old lady gets really worried when the dog disappears and she offers a big reward to get it back. Aunt Peggy is not a woman to let such an opportunity pass. She gets a similar dog with the help of an old friend and tries to return it to its "rightful owner" after a small makeover.