When Dr Harrison's housekeeper, Mrs Rose, discovers a leg of mutton has been stolen from the kitchen window on the very same night that Mr Johnson, the owner of the town's most important store, is mugged, the ladies decide that a crime wave has hit Cranford.
Mr Johnson, meanwhile, becomes convinced that Job Gregson, the local ne'er-do-well, attacked him and Job is arrested. Job's son Harry decides to make a confession to Mr Carter of his own part in the poaching to save his father from transportation and has to bear the acute disappointment in him that Mr Carter feels. Mr Carter pleads Job's case with Lady Ludlow, saying that without her interference Job will be found guilty and the Gregson family will starve. Lady Ludlow is immovable; the Gregsons are not her responsibility.
Dr Harrison confides in his medical school friend Jack Marshland about his love for Sophy. Jack encourages him to send her some Valentine flowers. But Jack, a perpetual prankster, has set up some mischief by sending a Valentine card to Caroline Tomkinson as if from Dr Harrison, hinting at marriage. Caroline is ecstatic and eagerly awaits Dr Harrison's proposal.