E4 Extra

The Vitamin Shoppe's CEO, Sharon M Leite, goes undercover to learn how to grow her brand and experience how operational changes and innovations are impacting the front lines.

Laurent 'LT' Therivel, a Marine veteran who started as CEO of mobile network UScellular less than a year before going undercover, wants to see how his new brand is growing.

Our twins helps Fran and Rocky house hunt in one of Nashville's most expensive neighbourhoods. And everything changes when Grandma and Grandpa step in..

On the south coast, there are experimental flavour combinations, banjo playing and a Billy Connolly lookalike, as three rival couples put their hosting skills to the test.

In Nottinghamshire, there's romantic crooning and post-meal planking, as Nena and Vish, Syreeta and Romaine, and Paul and Vicki put their hosting skills to the test.

The One Where the Groom Sings: Wayne wants to book a wedding band that he's certain fiancée Leanne will hate. But he's got a plan to keep her sweet: serenading her on the big day.

Catherine's dying to have a traditional Scottish wedding when she gets hitched to fiancé Richard. He, however, is thinking more of Antigua than Aberdeen.

Stephen J Cloobeck, CEO of hotel firm Diamond Resorts International, is the first boss to go undercover in his business for a second time, as he visits Pacific Monarch Resorts.

Steve Greenbaum, co-founder and CEO of PostNet, which helps small businesses with everything from printing to design, goes undercover to see how well his firm is functioning.

Gordon Ramsay visits South Philadelphia, where struggling family-run restaurant Chiarella's is pushing owners Tommy and Dina DeFino's marriage to the brink.

Gordon Ramsay revisits three restaurants to find out if they've continued to follow his advice. How have Down City, Classic American and Davide fared in his absence.

Jinny and Raymond live in a home with an exterior that's out-of-bounds. Jonathan starts on a sticky situation by fixing masking tape handywork.

In Yorkshire, there's plenty of banter, a Sheffield dessert and a saxophone-accompanied rap that leaves everyone speechless, as three couples put their hosting skills to the test.

Kiell Smith-Bynoe finds himself playing bingo without any shoes on. And all the comedians create boats to carry eggs in a race involving eggs (in boats).

Jimmy Carr hosts as team captains Sean Lock and Jon Richardson are joined by Josie Long and Rob Beckett. Vic Reeves and Joe Wilkinson assist Susie Dent and Rachel Riley.

Jimmy Carr hosts as team captains Sean Lock and Jon Richardson are joined by Jason Manford and Stephen Mangan. Tim Key and Joe Wilkinson assist Susie Dent and Rachel Riley.

Jen wants to challenge herself in the workplace and applies for the post of Entertainment Manager, but soon finds there's a darker side to the job.

Moss beats all records on a popular puzzle show, while Jen is preoccupied by Douglas's meetings with lots of women in fluffy dressing gowns.

Uzzi erases Bradley's indecent inking. Pash gives Billy a portrait of an Essex icon. Sketch rids Matt of a holiday disaster.

Kiell Smith-Bynoe finds himself playing bingo without any shoes on. And all the comedians create boats to carry eggs in a race involving eggs (in boats).

Jimmy Carr hosts as team captains Sean Lock and Jon Richardson are joined by Josie Long and Rob Beckett. Vic Reeves and Joe Wilkinson assist Susie Dent and Rachel Riley.

Gary Findley, CEO of Restoration 1, a self-described 'Redneck CEO' from Texas, goes undercover to ensure that there are no flaws in the company's playbook.

Paul Damico, the former president and CEO of Round Table Pizza, goes undercover to learn ways to expand the West Coast pizza franchise eastward and attract a younger clientele.

In Nashville, to make their home prim, Kim and Tim's garden needs a trim. Can Jonathan spruce up the place? Drew manages the tricky challenge of finding more for less.

In east Lancashire, Andrew and Sue's classic cuisine competes with Ben and Ruth's breakfast bonanza, and Helen and Victoria's 'beer can chicken', in a week of pranking and food sniffing.

In West Yorkshire, there's a surprise 1970s boogie and food that's almost as beautiful as the glamorous hosts, as three couples compete to host the best dinner party.

A hen party leaves Katie feeling deflated, while Darnell has a raucous stag do and even tries his hand at stripping. Can a perfect wedding day turn things around.

The One with the Groom's Dance Routine: Can Ritesh give fiancée Sheena the Hindu wedding of her dreams? And will a dance routine he's planned leave Sheena feeling loved up on the big day.

Lorne Abony, the CEO and chairman of in-store media provider Mood Media, one of the fastest-growing companies in America, adopts a disguise to go undercover in his own business.

Jim Rogers, the chairman and CEO of Kampgrounds of America, the largest campsite organisation in the world, goes undercover in his business, disguised as an accountant.

Gordon Ramsay revisits four restaurants he tried to help: the Spanish Pavillion in New Jersey, and Kingston Café, La Frite and Capri in California.

Gordon tries to help La Galleria 33, run by sisters Rita and Lisa, who blame the restaurant's failures on everything from tablecloths to the weather.

Jonathan aims to beautify Ilca and Fernando's house and in-home salon. That is, until Fernando swings a sledgehammer in the wrong place..

In Cardiff, newly-weds Laura and Sean host a Hawaiian feast featuring fruity surprises. Keith and Lesley-Ann prepare some posh nosh. And Rachel and Lee's lamb curry proves controversial.

Frankie Boyle impresses with his falsetto, while Kiell Smith-Bynoe wows everyone with his spoon retrieval abilities.

Jimmy Carr hosts as team captains Sean Lock and Jon Richardson are joined by Jo Brand and Claudia Winkleman. Bill Bailey and Joe Wilkinson assist Susie Dent and Rachel Riley.

Douglas becomes a Spaceologist, Roy's life is changed by a bad back, and Jen gets involved with a rock band.

Roy gets obsessed by his latest girlfriend's sad family history, while Jen tells an absolute whopper to get some attention.

Jimmy Carr hosts as team captains Sean Lock and Jon Richardson are joined by Bill Bailey and Josh Widdicombe. Jake Yapp and Joe Wilkinson assist Susie Dent and Rachel Riley.