Kathryn travels to East Grinstead to help parents Susan and James with their three-year-old twins Alfie and Harry. With stay-at-home dad James tackling temper tantrums on a daily basis and mum Susan dreading returning home from work to an exhausting bedtime ritual, the family urgently needs help. Nanny Mewes tackles the fussy eating and bad behaviour which has left the family unable to go out in public without fear of a major incident. However, when the focus shifts from the boys onto mum and dad, Nanny Mewes questions whose behaviour it is that's really causing the problems?
Nanny Mewes takes on triple trouble in Horley, Surrey, as she offers to help parents Sam and Jason and their four-year-old triplets. The lives of parents Sam and Jason are blighted by the daily barrage of tantrums and bad behaviour from their four-year-old triplets Abbey, Chloe and Emma. With the couple in danger of splitting up over how to discipline - dad believes in smacking, while mum firmly disagrees - the family are at breaking point. Nanny Mewes moves into the family home to implement her three-day action plan. When Kathryn's focus quickly shifts from the girls onto Sam and Jason, will her suspicions that the parents are the root of the family's problems prove true?
Kathryn visits the town of Harrogate to help parents Lisa and Ross with three-year-old Jack and five-year-old Alfie. The boys have pushed mum in particular to breaking point with their behaviour. Alfie has regular rages of anger, while fussy-eater Jack is hard to control and has no sense of danger. Nanny Mewes moves into the Vickers' household to implement her action plan. With coaching, advice and practical exercises, this real-life Mary Poppins attempts to manage Alfie's anger and cure Jack's love of running away, by getting dad more involved with family life.
Single mum Susan calls in Nanny Mewes to help with her troublesome sons: five-year-old Isaac and three-year-old Jacob. The boys run rings round Susan by being naughty during the day, demanding breaded chicken every evening and refusing to sleep in their own beds every night. Kathryn moves into the family home in Woking for three days and nights to introduce a new regime that challenges the boys' control of the household, and causes fireworks along the way.
Kathryn is in Newbury to meet the Morrisen family. Mother and three year old son are constantly at odds with each other and he swears at his mum nearly every day and it's tearing his parents apart.
The Hunter family that live in Bournemouth require Kathryn's help in dealing with their bossy three-year-old daughter Florence.
Kathryn helps single mum and nursery worker Carly McLaughlin with her two young children.
Kathryn gives Vaisaly and Asfand Ali some parenting tips to help with their two young kids
Kathryn is called to Northamptonshire and the Scott family, where she sees some of the worst behaviour she's ever confronted. Can she get mum and dad Chris and Becky on track?
Nanny Kathryn visits the Smiths in Stockton-on-Tees and attempts to ban smacking and restore order in a house where communication has broken down and chaos rules.
As a single mum to four unruly children under the age of three, Rosie Parsons's situation is an extreme test for The Three Day Nanny. Two and a half year old triplets Summer, Sienna and Jacob were an IVF miracle and when 13 month old Zach came along Rosie thought she had the perfect family. But then her marriage broke down and she was left to cope alone with four extremely demanding children who fight for their Mum's attention. At home they hit and bite and often trash the house as they battle for attention, but it's the quiet triplet that usually wins - with her extreme clinginess and constant demands to be carried she leaves Mum with no hands free to tackle the naughty behaviour of the others.
With their three-year-old daughter Bella totally ruling the roost, the Vernons, in the Wirral, have turned to nanny Kathryn Mewes in desperation. Simple tasks, like getting dressed or brushing teeth, are a guaranteed trigger for a tantrum - epic screaming fits that can last for hours at a time. With the couple failing to agree how best to manage their daughter's belligerence, cracks in the family are starting to show. Kathryn shows Mike and Emma how to regain control and focuses on improving the couple's relationship with their daughter. But with Bella railing against the new regime, will three days be enough to get the Vernon family back on track?
This time, in Luton, two-year-old Sebastian is literally banging his head against the wall in frustration. This toddler will also hit, bite and kick to get his parents' attention. Mum and dad feel powerless to control him. Kathryn finds out that Livia and Paul had a long and difficult journey to start a family. She needs to get mum and dad to stop wrapping their son in cotton wool. Easier said than done.
In Lincoln, for the first time in her career, Kathryn Mewes comes face-to-face with parents she feels lack the fundamental skills for the role. Ian and Janine Clemmit have tried to give their two boys everything they think they need. They've lavished them with toys and showered them with affection. But there's one thing they have never given them: boundaries. The result is a mum who's lost all control, a dad who is completely overwhelmed and a traumatised family cat. Three-year-old Liam and one-year-old Luke are completely out of control. They hit and bite each other, their parents and the family cat. Kathryn encourages the parents to get back to basics with their parenting, only to make a discovery that could be the key to the family's problems.