Farming in the Sixties is becoming a science, but the new hand on Doorstop Farm lacks qualifications as far as the explosive, hard-drinking Farmer Johnson is concerned. Although Tom seems a bit slow, hired at her suggestion, Mrs Johnson finds young Tom well up to the mark. She soon discovers a use for him alleviating the pressure of milk over-production after she breastfeeds her baby. But she has other plans for the inexperienced lad. After a close call relieving Tom's pressure in the cowshed, she decides to delay further adventures with the new lad until her husband is away at market. But come market day, farmer Johnson returns unexpectedly...