Mrs Moneypenny tackles the wasteful Jain family from Birmingham, who spend a whopping £24,000 a year more than they earn.
After creating a shocking mountain of their excessive consumption in the Jain's own back garden, can Mrs Moneypenny persuade Dad to ditch his 4x4, and Mum to lay off the take-aways and new clothes?
The show also features top tips from Mrs Moneypenny's thrifty army of superscrimpers - including a pensioner with advice on how to make your pants last longer, and an aristocrat who makes pasta out of nettles.
Meanwhile, Mrs Moneypenny's human calculator Merryn Somerset Webb hits the high street, smashing the last taboo as she gets the great British public to reveal all about what's in their bank accounts and what they spend it on.
This time the McGrory-Fisher family from London are in for one of Mrs Moneypenny's no-holds-barred household audits.
Mrs Moneypenny Is horrified to discover multiple daily trips to the supermarket, and children's bedrooms full of the latest gadgets - all of this amounting to a shocking waste of of funds.
Mrs Moneypenny's superscrimpers have more top tips for saving money - including a woman who makes her own clothes and a housekeeper with some interesting uses for cat litter.
And of course, Mrs Moneypenny's very own human calculator, Merryn Somerset Webb, hits the high street to get the public airing their dirty financial laundry.
Mrs Moneypenny meets a housekeeper who's built up an arsenal of money-saving cleaning tips over her years in service at some of Britain's grandest houses.
Other top scrimping tips include new gardening uses for old kitchen colanders and delicious recipes for leftover potatoes.
Spendaholic Jan Williams has a plastic habit that's not so fantastic, but Mrs Moneypenny reveals how she can save herself a small fortune in interest payments.
And Merryn Somerset Webb discovers how much pocket money Cardiff's children get and tries to teach some primary school kids the principles of budgeting and saving.
Mrs Moneypenny learns how to turn curtains into table mats when she meets superscrimper Angela.
The superscrimping army reveal why it pays to pick up after your postman; and also how to make your sheets last twice as long.
Merryn Somerset Webb names and shames the high street villains responsible for extortionate overdraft charges.
And the Scholes family from Burnley get Mrs Moneypenny's help to save for their wedding.
Mrs Moneypenny discovers a new generation of superscrimpers when she meets 23-year-old Gem Royston-Claire. Together they try out cheap and cheerful beauty treatments.
DIY John joins the superscrimper ranks with some top tips on home improvement at a fraction of the price.
Mrs Moneypenny comes to the rescue of young couple Charlotte and Ryan from Kent who need to reduce their spending before their twins are born.
And Merryn Somerset Webb hits the high street to reveal the shocking cost of that daily lunchtime sandwich.