Three couples from North London and Hertfordshire go fork to fork. Dawn and Simon, who've been married for 27 years, and hipsters Darren and Sian find themselves to be kindred spirits. But bonding with multilingual lawyer Ayesha, and astrophysicist and spinet-playing Stephen, proves more difficult for some.

Battling it out for the £1000 prize are the 'absolutely fabulous' Martyn and Russell, who've been together for 18 months and think their menu sparkles. Then there're caravan enthusiasts Jane and Colin and 24-hour party people Rachel and Dave. With desserts arriving by zip wire, an impromptu sing-off, and perhaps a little bit too much honesty, this contest is wide open.

Middle-aged couple Helen and husband Lorne put their 24 years of experience together into a safe, solid menu. But tactile lovebirds Ciaran and Anita perceive a lack of passion in the food and, without being asked, try to reignite their spark for them. Finally, Rob still can't believe his luck in meeting his Lithuanian wife Egle and feels the need to regularly pinch himself whenever he looks at her. But which couple will win the cash prize?

With some of the highest divorce rates in the country, three Essex couples hope to last the distance - or at least till the end of this competition - Asset manager Amie and hubby Mark got married last year, and Amie reckons she's in charge - not only of the relationship but in the kitchen too. Veterinary nurse Gemma and teacher Nathan have been together for six years, and Nathan unleashes some home truths about his other half, while the other contestants uncover something about his own quirky past. Completing the line-up are Simon and Suzanne, who've been married for 19 years. Suzanne's determined to win, but will Simon prove a hindrance when things hot up in the kitchen?

German-born Rosie and husband David have been married for 25 years, and are as loved-up now as the day they met. But professional footballer Gary seems to prefer bickering with Linda, his wife of nine years, to being lovey-dovey. The third couple are young newlyweds Melisa and Kyle - who has the appetite of a growing lad and, after he scoffs his own food, starts scoffing his wife's.

Taking up the culinary gauntlet in the East Midlands are partners Kev and Chelsey, Jayne and Ricky, and straight-talking Louise and Mark. Kicking off the competition with some posh nosh are Kev and Chelsey, who reckon their expensive ingredients will help them bag the prize, but Kev is less than impressed when everyone wants their steak well done. Up next is the turn of 1940s enthusiasts Jayne and Ricky who want to throw a dinner party themed on the Second World War. But their 'rations' style menu goes down badly with Kev and Chelsey. Last to host are Louise and Mark, who want to push the boat out with their menu, but some culinary mishaps let them down. Revelations about their unconventional living arrangements prompt a few home-truths and confrontations.

Amanda and her husband Anthony kick off proceedings with an ambitious menu. First to the door are bank manager Steve and his civil partner Sean. Completing the line-up are festival-lover Oli and his girlfriend LC. Day two is the turn of happy campers, Oli and LC, who cook a fully vegetarian menu, and welcome their guests for drinks in a specially erected festival tent. Last to host are Sean and Steve. Anthony shocks everyone again with a revelation from his own wedding day before Steve reveals his personal 'Suarez' moment.

Sam and Nick produce a simple menu which reflects their busy lives. With two businesses, and four children, they have very little time for anything else, and spend little time together. Second couple, Maria and her husband Terry, have been married an impressive 28 years. They create a night of Asian cuisine inspired by Terry's travels to Thailand. Last to host are computer salesman Dave and his girlfriend Sarah, who plan to focus their attention on a fun evening with good quality food. However, Sarah's exacting standards and attention to detail have the potential to derail their day. The evening ends on a high, as Dave and Sarah turn their galley kitchen into the 'world's smallest rock club', complete with decks, smoke machine, and flashing lights.

Michelle and Cameron hope that their 23 years together, Michelle's attention to detail, and their competitive spirit will help them take the crown. Fiancées Lindsay and Tara, who have been together seven years, are second to host, and some of Lindsay's jokes don't go down too well with all of the guests. The third couple are Lehandra and Joe, who have only been dating for five months, and have never thrown a dinner party together before.

In Kent three rival couples battle it out. Married West End performers Millie and Andy are the first to host. The kitchen is Millie's domain and she channels her family roots for the Greek Cypriot menu. Their first guests are newlyweds Sam and Emma, followed by dinner party enthusiasts Alex and Richard. Day two it's the turn of fashion conscious duo Sam and Emma, who hope to wow their guests with a glamorous themed evening, including spray-painting a beef Wellington gold. On the last day, Alex and Richard are calm, collected, and on the ball. Sam and Millie find out that the couple keep a dinner party diary dating back to 1992, having hosted over 500. But who is 'Bear'?

Toots and Jamie have been married for more than 20 years. Their eccentric menu reflects their unconventional approach to life. Day two is the turn of German born Kat, and her partner Scott, an RAF air cadet trainer. Their well-presented food is turned out with military precision, a theme reinforced by Scott taking his guests outside for a bit of parade ground drill practice! Last to host is self-confessed perfectionist Kevin, with partner Clare. Kevin sees himself as a bit of a 'masterchef' and goes into the final night brimming with confidence that his 'foodie' menu will blow away the competition.

Married couple Howard and Lisa kick off the competition as Lisa takes control in the kitchen. According to Lisa, Howard is so laid back he's almost dead! Day two sees Michael and Jenni host. Eyebrows are raised at Mike's collection of model buses. Awkward moments continue when Luke discovers a hair in his starter. Finally it's the turn of Luke and Louise to host and they manage to put in a polished performance, apart from their main course, where the over-cooked prawns lead Michael to open up about the time he got food hepatitis from a prawn salad....

Young newlyweds Nicole and Nathan kick-start the competition with an ambitious 'fine dining' menu, but their tattoos do not go unnoticed. On day two Tracey and Daryl are extremely confident their menu will win over their guests. But there are a few mistakes, which Nicole and Nathan are keen to point out. Finally, it's Richard and Sonya's turn to shine with their Irish themed menu. Their grand abode impresses, but will the food stand up?

Three couples cook up a feast in a bid to win the prize. Taking on the culinary baton are Esther and her show-off husband Darryl, quirky Louise and her partner David, and flamboyant theatre loving Carl, and his more reserved husband Brian. The competition reveals a love of a bargain, some strange fascinations, and a few discoveries in the closet.

Fiona and Ian kick off the competition with a Spanish menu. Young newly-weds Lauren and Pete cook a grown-up refined menu, surprising their guests, who had expected beans on toast. Karl and Mukta serve an Indian menu, while Karl reveals a love for birds and one of the party's past as a strippergram comes to light.

Am dram enthusiasts Hilary and Rowan get the competition underway with Hilary taking control in the kitchen. The food fails to hit the spot, and the evening is over-shadowed by Nancy, who can't stop talking. Day two sees Nancy, who is half Portugese, and Dean, who is Jamaican, put on a dinner party that reflects their heritage Finally, it's the turn of Ian and Hannah, and Hannah reveals a very unique technique Ian uses to 'water' the veg they've just been eating - which causes a few raised eyebrows, as does a chat amongst the couples telling their partners what they'd most like to change about them.

Kicking off the competition with a night of fine-dining are partners Dan and Jacqui, who between them reckon they've got it cracked with their combination of cooking and presentation skills. Day two is the turn of Hannah and Lucy, who hope to seal the prize with a menu that packs a punch, but it's Jacqui's provocative questioning of Simon and Edyta's relationship that steals the show. Last to host are Simon and Edyta, who treat their rival couples to a night of international cuisine.

Ollie and his girlfriend Deb think their holiday inspired menu has what it takes to win. Day two is the turn of competitive footballer Luke and his fiancée Nikki who, despite having never been to the country, feel sure their Thai menu will win them the cash prize. Jemima and Mark's Spanish-themed meni is inspired by their many holidays to Spain. The evening sees a sweaty confession from Mark, an underwhelming paella, and an arm wrestling match aimed at settling the alpha male competition once and for all.

Jodie and Ben are hoping to impress their guests with a varied menu, which includes a risky starter of raw lamb tartare. But straight- talking Michelle isn't convinced about the food, and even tells Ben he has alien ears. Day two sees joker Dave and sous chef Siân cooking up some traditional favourites, including bread and butter pudding. They perform a show-tune for their guests, but, once again, Michelle steals the limelight, as she shows she really can't stomach the dessert. Finally it's Michelle and Matt's turn to host and Michelle continues in the same vein as she has all week.

Super competitive husband and wife Kenny and Lisa kick things off with a meal that they think is restaurant quality - no less. Their guests have mixed opinions on this. Night two and it's the turn of the tribal elders Julie and Keith. They end up serving two very similar courses (by accident) and despite thinking they'll get away with it, they don't. Kate and Mike serve a Tex-Mex menu inspired by Kate's homeland of Texas.

Cultured types Eveleen and her ex-thespian husband Michael compete against couple Leanne and Ricci, with a 22 year age gap between them, and unromantic Paul and Natasha.

Married couple Caroline and Steve, newly engaged Jade and Seb and married co-workers Bev and Nick vie for the crown and the cash in Plymouth. The competition this time includes a complex Middle Eastern menu, accusations of 'schoolboy errors' and tales of hard times which don't elicit universal sympathy...

Kicking off the competition are drama school owners Lisa and Iain, who celebrate Iain's Highland roots by cooking an entirely Scottish menu - they even bring out the bagpipes. Second hosts are marketing manager Hannah and her fiancé Paul, who cause a stir with their cutting comments to one another. Finally, Ling and Mark serve a meal that represents her Chinese heritage and his English roots - a food type they like to call Chinglish.

The first dining duo are foster carer Sandra and her hubby Graham who met in the army over 17 years ago. The second couple are 38 year-old travel agent Joanne and her 32 year-old partner Simon, and completing the line-up are housewife Helen and banking manager Adam.

First night hosts are 30-year-old beauty salon owner Carla and her fiancé Marcus, whose wedding is just weeks away. It's Marcus who takes charge in the kitchen, but when the guests aren't keen on the halibut starter in tin foil, it's down to novice-cook Carla to make amends with a risky dessert of chocolate soufflé. Day two is the turn of competitive cooks Michael and Joanna, and the final night is hosted by laid-back couple Trudy and Anselm, who hope their casual style will win over their guests.