Garston Manor is a grade II listed Georgian Country House located near Abbots Langley in Hertfordshire. Sheila O'Neill bought the house as a wreck from the local council and turned Garston Manor into a Montessori school. Thirteen years later the house is just about breaking even. Ruth encourages Sheila and her four daughters to take separate responsibility for different tasks and schemes at to improve the manor, including a new terrace, improved gardens, a woodland treasure hunt and a UFO academy. However, will these new ventures make any money?